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                                                                    EXHIBIT 4.1



                          REDOX TECHNOLOGY CORPORATION

              DESIGNATION OF RIGHTS, PRIVILEGES, AND PREFERENCES OF
                           CONVERTIBLE PREFERRED STOCK

Pursuant to the provisions of Section 151 of the Delaware General Corporation
Law, REDOX Technology Corporation (hereinafter, the "Corporation") hereby adopts
the following Designation of Rights, Privileges, and Preferences of Convertible
Preferred Stock (the "Designation").

FIRST: The name of the Corporation is REDOX Technology Corporation.

SECOND: The following resolution establishing a series of Convertible Preferred
stock designated as the "Convertible Preferred Stock" consisting of Ten Million
(10,000,000) shares, $0.001 par value per share, was duly adopted by the Board
of Directors of the Corporation on July 1, 1996 in accordance with the
certificate of incorporation, as amended, amended, of the Corporation and the
corporation laws of the state of Delaware.

     RESOLVED, there is hereby created a series of preferred stock of the
     Corporation to be designated as the "Convertible Preferred Stock"
     consisting of Ten Million (10,000,000) shares, $0.001 par value per share,
     with the following powers, preferences, rights, qualifications,
     limitations, and restrictions:

     1. Liquidation

          1.1      In the event of the voluntary or involuntary liquidation
               (whether partial or complete), dissolution, or winding up of the
               Corporation, the holders of the Convertible Preferred Stock shall
               be entitled to be paid out of the assets of the Corporation
               available for distribution to its shareholders, whether from
               capital, surplus, or earnings, an amount of cash equal to One
               dollar ($1.00) per share plus all unpaid dividends previously
               declared thereon to the date of final distribution. No
               distribution shall be made on any Common stock or other series of
               Preferred stock of the Corporation by reason of voluntary or
               involuntary liquidation (whether partial or complete),
               dissolution, or winding up of the Corporation unless each holder
               of any Convertible Preferred Stock shall have received all
               amounts to which such holder shall be entitled under this
               subsection.

          1.2      If on any liquidation (whether partial or complete),
               dissolution, or winding up of the Corporation, the assets of the
               Corporation available for distribution to holders of Convertible
               Preferred Stock shall be insufficient to pay the holders of the
               Convertible Preferred Stock the full amounts to which they would
               otherwise be entitled under Section 1.1, above, the assets of the
               Corporation available for distribution to holders of Convertible
               Preferred Stock shall be distributed to them pro rata on the
               basis of the number of shares of Convertible Preferred Stock held
               by each such holder.



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     2. Voting Rights

          The Convertible Preferred Stock shall be voted with the Common stock
          of the Corporation and with each other series of Preferred stock as a
          single class and shall not be entitled to vote as a separate class,
          except to the extent that the consent of the holders of Convertible
          Preferred Stock, voting as a class, is specifically required by the
          provisions of the corporation law of the state of Delaware, as now
          existing or as hereafter amended.

     3. Subordination

          Any payment of any dividend or any redemption hereunder shall be
          subordinated to payment in full of all Senior Debt as defined herein.
          "Senior Debt" shall mean the principle and premium, if any, and
          interest on all indebtedness of the Corporation to any financial
          institution, including, but not restricted to, (i) banks, whether
          currently outstanding or hereinafter created, and whether or not such
          loans are secured, (ii) any other indebtedness, liability,
          obligations, contingent or otherwise of the Corporation to guarantee
          endorsement of the contingent obligation with respect to any
          indebtedness, liability, or obligation whether created, assumed, or
          incurred by the Corporation and after the date of the creation of the
          Convertible Preferred Stock, which is, when created, specifically
          designated by the Corporation as Senior Debt, and (iii) any refunding,
          renewals, or extensions of any indebtedness or similar obligations
          described as Senior Debt in sub-paragraphs (i) and (ii) of this
          subsection.

     4. Dividends

          4.1      The Corporation shall pay to the holders of the Convertible
               Preferred Stock out of the assets of the Corporation at any time
               for the payment of dividends at the times and in the amounts so
               declared by the Board of Directors of the Corporation and in the
               manner prescribed in this Section.

          4.2      The holders of the Convertible Preferred Stock shall be
               entitled to receive dividends, if any, as may be declared from
               time to time by the Board of Directors, provided that there are
               Corporation funds legally available for the payment of such
               declared dividends. The Convertible Preferred Stock shall not
               have any preference as to dividends.

          4.3      Any payment of dividends declared and due under this Section
               with respect to any shares of the Convertible Preferred Stock
               shall be made by means of a check drawn on funds immediately
               available for the payment thereof to the order of the holder of
               such share(s) at the address for such holder of record shown on
               the stock records maintained by or for the Corporation, which
               check shall be mailed by United States Postal Service first-class
               mail, postage pre-paid. Any such payment shall be deemed to have
               been paid by the Corporation on the date that such payment is
               deposited in the United States mail as provided above, provided
               that in the event that the check or other medium by which any
               payment shall be made shall prove not to be immediately
               collectible on the date of payment, such payment shall not be
               deemed to have been made until cash in the amount of such payment
               shall actually be received by the person entitled to receive such
               payment.



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          4.4      Registration of transfer of any share of the Convertible
               Preferred Stock on the stock records maintained by or for the
               Corporation to a person other than the transferor shall
               constitute a transfer of any right which the transferor may have
               had to receive any accrued but unpaid dividends as of the date of
               transfer, whether declared or undeclared, and the Corporation
               shall have no further obligation to the transferor with respect
               to such accrued but unpaid dividends. Any shares of Convertible
               Preferred Stock represented by a new certificate issued to a new
               holder shall continue to accrue dividends as provided in this
               Section.

     5. Conversion

          5.1      Each share of the Convertible Preferred Stock is convertible
               into Common Stock of the Corporation, par value $0.00005, (the
               "Common Stock") at the times, in the manner, and subject to the
               conditions provided in this Section.

          5.2      Each share of the Convertible Preferred Stock may be
               converted at any time at the election of the holder of the
               presentation and surrender of the certificate representing the
               share, duly endorsed, with written instructions specifying the
               number of shares of the Convertible Preferred Stock to be
               converted and the name and address of the person to whom
               certificate(s) representing the Common Stock issuable on the
               conversion are to be issued at the principal office of the
               Corporation.

          5.3      Each share of the Convertible Preferred Stock shall be
               convertible into Common Stock of the Corporation at the rate of
               Five (5) shares of Common Stock for each share of Convertible
               Preferred Stock (the "Conversion Rate"). The Conversion Rate
               shall be subject to adjustment pursuant to Section 5.4, below.


          5.4      In order to prevent dilution of the rights granted
               hereunder, the Conversion Rate and liquidating voting rights
               shall be subject to adjustment from time to time in accordance
               with this subsection.

               (a)  In the event the Corporation shall declare a dividend or
                    make other distribution on any capital stock of the
                    Corporation payable in Common Stock, options to purchase
                    Common Stock, or securities convertible into Common Stock of
                    the Corporation shall at any time subdivide (other than by
                    means of a dividend payable in Common Stock) its outstanding
                    shares of Common Stock into a greater number of shares, or
                    combine such outstanding stock into a smaller number of
                    shares, then in each such event, the Conversion Rate in
                    effect immediately prior to such combination shall be
                    adjusted so the holders of the Convertible Preferred Stock
                    shall be entitled to receive the kind and number of shares
                    of Common Stock or other securities of the Corporation which
                    they would have owned or have been entitled to receive after
                    the happening of any of the events described above, had such
                    shares of the Convertible Preferred Stock been converted
                    immediately prior to the happening of such event or any
                    record date with respect thereto; an adjustment made
                    pursuant to this subsection shall become effective
                    immediately after the effective date of such event
                    retroactive to the record date for such event.



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               (b)  If any capital reorganization or reclassification of the
                    capital stock of the Corporation, consolidation, or merger
                    of the Corporation with another Corporation, or the sale of
                    all or substantially all of its assets to another
                    corporation shall be effected in such a way the holder of
                    Common Stock shall be entitled to receive stock, other
                    securities, or other assets with respect to or in exchange
                    for Common Stock, then as a condition of such
                    reorganization, reclassification, consolidation, merger, or
                    sale, lawful adequate provisions shall be made whereby the
                    holders of the Convertible Preferred Stock shall thereafter,
                    subject to prior redemption by the Corporation, have the
                    right to acquire and receive on conversion of the
                    Convertible Preferred Stock such shares of Common Stock,
                    other securities, or other assets as would have been
                    issuable or payable (as part of the reorganization,
                    reclassification, consolidation, merger, or sale) with
                    respect to or in exchange for such number of outstanding
                    shares of the Corporation's Common Stock as would have been
                    received on conversion of the Convertible Preferred Stock
                    immediately before such reorganization, reclassification,
                    consolidation, merger, or sale. In any such case,
                    appropriate provisions shall be made with respect to the
                    rights and interests of the holders of the Convertible
                    Preferred Stock to the end that the provisions hereof
                    (including, without limitations, provisions for adjustments
                    of the Conversion Rate and for the number of shares issuable
                    on conversion of the Convertible Preferred Stock) shall
                    thereafter be applicable in relation to any shares of Common
                    Stock, other securities, or other assets of the Corporation
                    thereafter deliverable on the conversion of the Convertible
                    Preferred Stock. In the event of a merger or consolidation
                    of the Corporation with or into another corporation or the
                    sale of all or substantially all of its assets as a result
                    of which a number of shares of Common Stock of the surviving
                    or purchasing corporation greater or less than the number of
                    shares of Common Stock of the Corporation outstanding
                    immediately prior to such merger, consolidation, or purchase
                    are issuable to holders of Common Stock of the Corporation,
                    then the Conversion Rate in effect immediately prior to such
                    merger, consolidation, or purchase shall be adjusted in the
                    same manner as though there were a subdivision or
                    combination of the outstanding shares of Common Stock of the
                    Corporation.

               (c)  No adjustment shall be made in the Conversion Rate of the
                    number of shares of Common Stock issuable on conversion of
                    Convertible Preferred Stock (i) in connection with the offer
                    and sale of Convertible Preferred Stock; (ii) in connection
                    with the issuance of any Common Stock, other securities, or
                    other assets on conversion or redemption of shares of
                    Convertible Preferred Stock; (iii) in connection with the
                    issuance of any share of Common Stock, other securities, or
                    other assets on account of the anti-dilution provisions of
                    this Section; (iv) in connection with the purchase or other
                    acquisition by the Corporation of any capital stock,
                    evidence of its indebtedness, or other securities of the
                    Corporation; or



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                    (v) in connection with the sale or exchange by the
                    Corporation of any Common Stock, evidence of its
                    indebtedness, or other securities of the corporation
                    including securities containing the right to subscribe for
                    or purchase Common stock or Convertible Preferred stock of
                    the Corporation.

          5.5      The Corporation covenants and agrees that:

               (a)  The shares of Common Stock, other securities, or other
                    assets of the Corporation issuable on any conversion of any
                    shares of Convertible Preferred Stock shall be deemed to
                    have been issued to the person on the Conversion Date, and
                    on the Conversion Date, such person shall be deemed for all
                    purposes to have become the record holder of such Common
                    Stock, other securities, or other assets.

               (b)  All shares of Common Stock or other securities which may be
                    issued on conversion of the Convertible Preferred Stock
                    will, on issuance, be fully paid and nonassessable and free
                    from all taxes, liens, and charges with respect to the issue
                    thereof. Without limiting the generality of the foregoing,
                    the Corporation will, from time to time, take all action as
                    may be requisite to assure that the par value of the
                    unissued Common Stock or other securities acquirable on any
                    conversion of the Convertible Preferred Stock is at all
                    times equal to or less than the amount determined by
                    dividing the par value of a share of Convertible Preferred
                    Stock by the number of shares of Common Stock or other
                    securities issuable on conversion of such share.

               (c)  The issuance of certificates for Common Stock or other
                    securities on conversion of the Convertible Preferred Stock
                    shall be made without charge to the registered holder
                    thereof for any issuance tax in respect thereof or other
                    costs incurred by the Corporation in connection with the
                    conversion of the Convertible Preferred Stock and the
                    related issuance of Common Stock or other securities.

     6. Redemption

          6.1      Subject to the requirements and limitations of the
               corporation laws of the state of Delaware, the Corporation shall
               have the right to redeem the shares of the Convertible Preferred
               Stock on the following terms and conditions.

          6.2      The shares of the Convertible Preferred Stock are subject to
               redemption by the Corporation at any time after issuance pursuant
               to written notice of redemption given to the holders thereof on
               not less than Thirty (30) days, specifying the date on which the
               Convertible Preferred Stock shall be redeemed (the "Redemption
               Date"). The Corporation may redeem a portion or all of the issued
               and outstanding shares of Convertible Preferred Stock, provided
               that, in the event that less than all of the outstanding shares
               of Convertible Preferred Stock are redeemed, such redemption
               shall be pro rata determined on the basis of the number of shares
               of Convertible Preferred Stock outstanding.



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          6.3      The redemption price for each share of Convertible Preferred
               Stock shall be One dollar ($1.00) per share plus any accrued but
               unpaid dividends, if applicable, on such share as of the
               Redemption Date (the "Redemption Price"). The Redemption Price
               shall be paid in cash.

          6.4      Redemption of the Convertible Preferred Stock shall be made
               in the following manner:

               (a)  The Corporation shall notify the transfer agent of the
                    Corporation's Common Stock (the "Transfer Agent") of its
                    intention to redeem the Convertible Preferred Stock. Such
                    notice shall include a list of all holders of the
                    Convertible Preferred Stock outstanding as of the most
                    recent practicable date and a statement of the number of
                    shares of the Convertible Preferred Stock to be redeemed and
                    the manner in which the Redemption Price is to be paid. At
                    least Ten (10) days prior to the date that written notice of
                    redemption is given to holders of the Convertible Preferred
                    Stock, the Corporation shall make appropriate arrangements
                    with the Transfer Agent for the delivery of funds and/or
                    Common Stock necessary to make payment of the Redemption
                    Price for all shares of Convertible Preferred Stock redeemed
                    by the Corporation.

               (b)  On the Redemption Date, all shares of the Convertible
                    Preferred Stock subject to redemption shall be automatically
                    redeemed unless earlier converted pursuant to Section 5,
                    above. The holder of any shares of the Convertible Preferred
                    Stock so redeemed shall be required to tender the
                    certificates representing such shares, duly endorsed, to the
                    Transfer Agent in exchange for payment of the Redemption
                    Price and reissuance of the balance of the Convertible
                    Preferred Stock not otherwise converted or redeemed. On such
                    surrender, the Transfer Agent shall cause to be issued and
                    delivered a check with all reasonable dispatch to the holder
                    and/or the holder's designatees or assigns.

               (c)  Following the expiration of a period of Thirty (30) days
                    following the Redemption Date, the Transfer Agent shall
                    provide to the Corporation a complete accounting of the
                    Convertible Preferred Stock redeemed and a list of all
                    shares of Convertible Preferred Stock remaining unconverted
                    and not returned to the Corporation for redemption. The
                    Corporation shall pay all costs associated with establishing
                    and maintaining any bank accounts for funds deposited with
                    the Transfer Agent, including the costs of issuing any
                    checks.

     7. Additional Provisions

          7.1      No change in the provisions of the Convertible Preferred
               Stock set forth in this Designation affecting any interests of
               the holders of any shares of Convertible Preferred Stock shall be
               binding or effective unless such changes shall have been approved
               or consented to by the holders of Convertible Preferred Stock in
               the manner provided in the corporation laws of the state of
               Delaware, as the same may be amended from time to time.



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          7.2      The shares of Convertible Preferred Stock shall be
               transferable only on the books of the Corporation maintained at
               its principal office, on delivery thereof duly endorsed by the
               holder or by his duly authorized attorney or representative or
               accompanied by proper evidence of succession, assignment, or
               authority to transfer. In all cases of transfer by an attorney,
               the original letter of attorney, duly approved, or an official
               copy thereof, duly certified, shall be deposited and remain with
               the Corporation. In case of transfer by executors,
               administrators, guardians, or other legal representatives, duly
               authenticated evidence of their authority shall be produced and
               may be required to be deposited and remain with the new
               certificate representing the shares of Convertible Preferred
               Stock so transferred to the person entitled thereto.

          7.3      The Corporation shall not be required to issue any fractional
               shares of Common Stock on the conversion or redemption of any
               share of Convertible Preferred Stock.

          7.4      Any notices required or permitted to be given to the holders
               of the Convertible Preferred Stock under this Designation shall
               be deemed to have been duly given if mailed by first-class mail,
               postage prepaid, to such holders at their respective addresses
               appearing on the stock records maintained by or for the
               Corporation, and shall be deemed to have been given as of the
               date deposited in the United States mail.


IN WITNESS WHEREOF, the foregoing Designation of Rights, Privileges, and
Preferences of Convertible Preferred Stock of the Corporation has been executed
this Second day of July, Nineteen Hundred Ninety-Six.


ATTEST:


- ----------------------------------
Richard Szymanski
Secretary and President

                    -------------------------------------------------

STATE OF TEXAS                  )
                                :ss
COUNTY OF HARRIS                )

On July 2, 1996, before me the undersigned, a notary public in and for the above
county and state, personally appeared Richard A. Szymanski, who being by me duly
sworn, did state for himself the he, Richard A. Szymanski, is the President and
Secretary of REDOX Technology Corporation, a Delaware corporation, and that the
foregoing Designation of Rights, Privileges, and Preferences of Convertible
Preferred Stock of REDOX Technology Corporation was signed on behalf of such
corporation by authority of a resolution of its Board of Directors, and that the
statements contained therein are true.

                                       WITNESS MY HAND AND OFFICIAL SEAL


                                       -----------------------------------------
                                       NOTARY PUBLIC

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