Exhibit 99.3

INGEN TECHNOLOGIES, INC.
35193 Avenue A, Suite C
Yucaipa, California 92399


                                    AGREEMENT

This Agreement made effective as of this 1st day of August, 2007, by and Between
MedOx, Corporation, a California Corporation, further referred to as the
("Contractor") whose principal address is 23404 Lyons Avenue, Suite 191,
Newhall, California 91321; and INGEN TECHNOLOGIES, INC., A Nevada Corporation,
further referred to as the ("Company"), whose principal address is 35193 Avenue
A, Yucaipa, California 92399 , and is made with reference to the following.

                                    RECITALS

A.    The Company is a Medical Device Manufacturer, and in the business of
      providing medical products and services on a global basis. Said products
      and services are inclusive of, but not limited to, vestibular function
      testing and balance testing, referred to as "Secure Balance(TM)",
      OxyAlert(TM) and OxyView(TM).

B.    The Company desires to engage the services of the Contractor to assist
      with Oxyview(TM) and OxyAlert(TM) marketing. Both the Company and the
      Contract understand that Invacare Supply Group, Inc. is the sole exclusive
      distributor of Oxyview(TM).

C.    The Contractor has the expertise, knowledge and resources for assisting
      with the sales and marketing of OxyView(TM) and OxyAlert(TM) products and
      agrees to and accepts to sell the OxyView(TM) products on a "best efforts"
      basis.

D.    The Company will provide product, installation, training, advertising &
      market assistance, promotional materials and other developmental
      documentation used to promote said products and services in accordance to
      all laws of which govern the Company in this type of industry.

E.    The Company desires to utilize the Contractor's expertise, knowledge and
      other resources for developing and promoting said services as described in
      the above recitals for the purpose of establishing sales of Oxyview(TM)
      and OxyAlert(TM) products and services, and as such, the Contractor
      desires to assist with the marketing of the OxyView(TM) and OxyAlert(TM)
      products and services provided by the Company.

NOW, THEREFORE, the Parties mutually agree as follows:

1.    In consideration of the Contractor furnishing the expertise, knowledge and
      other resources in providing said services and market assistance as set
      forth in the above recitals hereof;

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      a)    The Company agrees to pay the Contractor 4% (four percent) of all
            Oxyview(TM) revenues received by Invacare Supply Group, Inc.

      b)    If and when Invacare Supply Group, Inc. purchases reach a total of
            one million OxyView(TM) units, the Company will issue a total of
            2,000,000 restricted common shares to the Contractor according to
            the following schedule. This issuance is only for the first one
            milliion units sold and does not constitute an ongoing issuance for
            additional sales of OxyView(TM).

      c)    The Contractor will receive $20,000 for the remaining balance due
            one the previous contract. This amount will be paid on or before
            January 1, 2008.

2.    The Company authorizes the Contractor, and any of his sub-marketing
      groups, to market, promote and sell the products and services of the
      Company as described in Exhibit-A. Any other products and services offered
      by the Company are not a part of this Agreement and may not be sold and/or
      marketed by the Contractor without the written permission or authorization
      from the Company.

3.    As a part of the services specified herein, the Contractor accepts the
      above considerations and understands his/her rights to sell said products
      within the United States and abroad. The Contractor agrees to provide
      his/her "best efforts" to assist with the marketing for the OxyView(TM)
      and OxyAlert(TM) products and services.

4.    The Company holds harmless and indemnifies MedOx Corporation and Jeffrey
      Gleckman from all liabilities associated with any claims or lawsuits. The
      Company agrees to include MedOx Corporation and Jeffrey Gleckman as an
      additionally insured party to the Company product liability insurance
      coverage.

5.    Except for the amounts paid to the Contractor as stated in paragraph-1 and
      within the Recitals herein, the Contractor shall not be entitled to other
      payment and/or reimbursement for expenses incurred pursuant to this
      Agreement. All costs and expenses incurred by the Contractor in rendering
      said services shall be reimbursed or advanced by the Company only upon
      written authorization to the Contractor by the Company.

6.    The Company agrees to provide full and proper assistance to the Contractor
      inclusive of administrative support, technical support, and professional
      support on a best efforts basis and within regulatory guidelines and laws
      set forth for providing said services and without penalty to the
      Contractor.

7.    The Contractor agrees to provide the Company with proper tax documentation
      and identification upon the signing of this Agreement in accordance to
      State and Federal tax laws.

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8.    The relationship between both parties created by this Agreement is that of
      principal ("the Company") and Outside Contractor ("the Contractor") in
      that the time spent and the professional manner in which the services are
      performed shall solely be the responsibility of the Contractor. However,
      the Contractor agrees to use their best and most diligent efforts, within
      all laws, to provide the resources and expertise under the terms and
      conditions setforth herein.

9.    During the term of this Agreement the Contractor does not have the right
      to promote services, either directly and/or indirectly, to any entity that
      has a similar products as provided by the Company for the duration of this
      Agreement.

10.   In consideration of the importance of confidentiality, non-disclosure and
      trade secrets, the Contractor acknowledges that during the course of this
      Agreement between the Company and the Contractor, the Contractor has had
      access to and will continue to have access to various confidential
      information and trade secrets consisting of compilations of information,
      records, specifications and trade lists, which are owned by the Company
      and which are regularly used in the operation of the Company's business.
      The Contractor specifically agrees to NOT distribute the product pricing
      of the Company, nor use the brand name on any of their pricing to their
      clients. Further, the Contractor will agree to keep confidential all
      material related to or made a part of this Agreement from any client,
      employee, associate and/or the like.

      In consideration of continued engagement through this Agreement during the
      period of the Agreement by the Company, the Contractor shall not disclose
      any of the aforesaid confidential information or trade secrets, directly
      or indirectly, nor use them in any way, either during the term of this
      Agreement or at any time thereafter, except as required in the
      Contractor's engagement with the Company, but does not include information
      already within the public domain at the time the information is acquired
      by the Contractor, or information that subsequently becomes public through
      no act or omission of the Contractor.

      In further consideration of continued engagement and during the period of
      the Agreement, all files, records, documents, drawings, specifications,
      equipment and similar items relating to the business of the Company,
      whether prepared by the Contractors or otherwise, coming into the
      Contractor's possession shall remain the exclusive property of the Company
      and shall not be removed from the Company's premises under any
      circumstances whatsoever without prior written consent of the Company.

11.   This Agreement shall continue in effect for a period of three years
      (3-yrs), and may be continued thereafter only by the express mutual
      agreement of both parties. This agreement can only be terminated by breech
      of contract. One or both parties must submit, in writing, with a 30 day
      notice, any termination.

12.   This document contains the entire Agreement of the parties relating to
      this Agreement and correctly sets forth the rights, duties and obligations
      of all parties hereto. Any prior agreements, promises, negotiations and/or
      representations not expressly set forth in this Agreement is of no force
      and effect.

13.   No waiver of any term or condition of this Agreement shall be deemed or
      construed to be a waiver of such term or condition in the future, or of
      any preceding or subsequent breach of the same or any other term or
      condition of this or any other agreement. All remedies, rights,
      undertakings, obligations and agreements contained in this Agreement shall
      be cumulative and none of them shall be in limitation of any other remedy,
      right, undertaking, obligation or agreement of either party hereto.

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14.   No amendment or modification of this Agreement or of any covenant,
      condition or limitation herein contained shall be valid unless in writing
      and duly executed by the party to be charged therewith. Unless otherwise
      specifically set forth under a particular provision, any amendment or
      modification shall require the overall consent of both parties.

15.   Nothing contained in this Agreement shall be construed so as to require
      the commission of any act contrary to law, and whenever there is a
      conflict between any provision of this Agreement and any statute, law,
      ordinance, rule, order or regulation, the later shall prevail, but in such
      event any such provision of this Agreement shall be curtailed and limited
      only to the extent necessary to bring it within the legal requirements.

16.   This Agreement, and all rights and obligations contained herein shall be
      binding on and inure to the benefit of the parties hereto and their
      respective heirs, executors, legal and personal representatives,
      successors and assigns. It is also specifically agreed and understood that
      this Agreement shall be binding upon any successor-in-interest to the
      Company by way of merger, consolidation or otherwise.

17.   Any controversy arising out of or in connection with this Agreement, or
      any amendment thereof, shall be determined and settled by arbitration in
      accordance with the rules of the American Arbitration Association. The
      venue for such arbitration shall be exclusively San Bernardino County, the
      State of California, and any award rendered shall be final and binding on
      each and all of the parties thereto and their successor-in-interest, and
      judgment may be entered thereon in any court having jurisdiction thereon.
      In any such proceeding, the Arbitrator shall be and hereby is empowered to
      render an award directing specific performance. Each individual party
      shall take responsibility for obligations pertaining to costs associated
      with their own legal representation.

18.   All notices among the parties hereto shall be in writing and shall be
      deemed duly served when personally delivered to another party or, in lieu
      of such personal service, when deposited in the United States mail,
      certified and return receipt requested, with first class postage prepaid
      thereon, addressed as set forth above, or in such other place as may be
      specified in any written notice given pursuant to this paragraph as the
      address for service of notice. All notices shall be delivered to the
      parties addresses as witnessed below.

         Company:                 Scott Sand, CEO & Chairman
                                  Ingen Technologies, Inc.
                                  285 E. County Line Rd.
                                  Calimesa, CA 92320
                                  (800) 259-9622
                                  Tax ID No. 88-0429044

         Contractor:              Jeff Gleckman
                                  MedOx, Corpration
                                  23404 Lyons Avenue, Suite 191
                                  Newhall, CA 91321
                                  (661) 510-3559
                                  661-286-2336 FAX

                                  Mr. Jeff Gleckman
                                  25348 Verne Ct.
                                  Stevenson Ranch, Ca. 91381

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19.   This Agreement shall be governed and construed in accordance with laws of
      the State of California.

      IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
      the date first set forth above and agree to all of the terms and
      conditions of this Agreement setforth herein.


      The Contractor:
                      /s/ Jeff Gleckman                          8-1-07
                      ------------------------------        ---------------
                      Jeff Gleckman                         Date


      The Company:

                      /s/ Scott Sand                         August 1, 2007
                      ------------------------------        ---------------
                      Scott Sand, CEO                       Date
                      Ingen Technologies, Inc.





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                                    EXHIBIT-A
                          PRODUCT LIST SOLD TO CUSTOMER

OXYVIEW(TM)

OxyView(TM), with a US Patent Pending, is a pneumatic gauge that measures oxygen
flow-rate close to the patient and near the canula. OxyView(TM) provides a fast
and convenient way to quickly determine flow-rate and the assurance that the
patient is receiving the proper amount of oxygen needed. This product enhances
the safety, assurance and accuracy of hospitalized patients, surgical patients
and patients prescribed outpatient oxygen therapy from any oxygen delivery
source. OxyView(TM) is a lightweight pneumatic gauge that is easily attached to
the oxygen tubing just below the neck and close to the patient. OxyView(TM) will
conveniently inform the hospital staff or care-giver of any leak or inaccuracy
between the delivery source and the patient. OxyView(TM) will allow for improved
patient care.

ADVANTAGES OF OXYVIEW(TM)

      o     Lightweight pneumatic gauge that measures oxygen flow-rate
      o     Attaches easily to oxygen tubing just below neck and close to the
            patient
      o     Eliminates discrepancy by measuring oxygen flow rate near the
            patient not the source.
      o     Uses no batteries and is reliable
      o     Clean packaging and Disposable for hospital use
      o     For use in hospitals, surgical rooms and outpatient therapy


OxyView(TM), with US Patent Pending, is a pneumatic gauge that quickly measures
oxygen flow-rate close to the patient.

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OxyView(TM) is a reliable lightweight pneumatic gauge that measures oxygen
flow-rate.

OxyView(TM) enhances the safety, assurance and accuracy of hospitalized and
surgical patients being administered oxygen from any source. It could quickly
inform any medical staff of any leak or inaccuracy between the delivery source
and the patient.

Oxyview(TM) allows for fast and reliable measurement of oxygen flow-rate.


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