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               THERMOGENESIS CORP. ANNOUNCES THIRD QUARTER RESULTS

                BioArchive (R) Revenues Significantly Increased,
           Restructuring Plan Initiated and Balance Sheet Strengthened

Rancho Cordova,  California (May 14, 2003) - THERMOGENESIS CORP. (Nasdaq:  KOOL)
today announced  results for its third quarter of fiscal year 2003,  ended March
31, 2003. The Company reported net revenues for the third quarter of $2,886,000,
a 6% increase when compared to $2,735,000  reported in the third quarter of last
year.  For the nine  months  ended  March 31, 2003 the  Company's  net  revenues
increased 8% to $7,289,000  compared to $6,720,000  for the first nine months of
the prior year.

This quarter represents the first three months of operations under the direction
of Kevin Simpson, the Company's new President and COO who has more than 20 years
of  executive  management  experience  in the field of life  sciences,  12 years
specifically in the blood industry.

"Revenues  continued to increase in our two pipeline  product lines,  BioArchive
and  CryoSeal(R),  for the three and nine months ended March 31,  2003",  stated
Kevin  Simpson.  "We are  especially  pleased  that the  increasing  momentum in
BioArchive  and CryoSeal  sales offset the decline in ThermoLine  revenues which
were inflated in the prior year as a result of a large order for plasma freezers
received from Aventis Bio-Services, Inc. Additionally,  revenues from BioArchive
and CryoSeal  disposables  sold to existing  customers  increased  216% over the
prior year third quarter and we anticipate continuing growth in these products."

Despite the increase in revenues,  the Company's gross profit decreased $123,000
from the quarter ended March 31, 2002 to the quarter  ended March 31, 2003.  The
decrease was primarily  due to the higher  overhead  resulting  from lower units
produced in-house and increased  contract service expenses.  In order to improve
future gross profit margins,  the Company has  implemented a restructuring  plan
designed to achieve the  improvements in overall gross profit margins  necessary
for the Company to achieve  self-sufficiency  and profitable  growth.  This plan
will be executed in three parts:  (1) focus the  Company's  marketing  and sales
efforts  to  improve  the  revenues  and  selling  prices  of the  CryoSeal  and
BioArchive  product lines,  (2) reduce the in-house direct and overhead costs of
manufacturing, and (3) identify alternative OEM supplier relationships that will
provide  low cost and high  quality  disposables.  As part of the  restructuring
plan, on April 9, 2003, the Company reduced the personnel costs in manufacturing
overhead by  approximately  $500,000  and direct  labor by $100,000 on an annual
basis.

The  Company's  balance  sheet was  strengthened  upon  completion  of an equity
financing  during the third quarter of fiscal year 2003,  which  generated  $5.3
million in net  proceeds.  "Our  ability to raise  funds in the  current  market



speaks to the  investors  confidence  in the  Company's  restructuring  plan and
strategic direction" stated Philip Coelho, Chairman and CEO.  "Additionally,  we
initiated  efforts in the third  quarter to promote the federal  financing  of a
National  Cord Blood Stem Cell Bank  Network.  The  proposed  legislation  would
provide for the  collection  and cryogenic  archiving of 200,000 cord blood stem
cell units to be used in the treatment of life  threatening  diseases to replace
the bone  marrow of victims  of  radiation  exposure  from  potential  terrorist
attacks." Although uncertain in light of current fiscal and budgetary debates in
Congress,  the Company is hopeful that a bill  providing for the funding will be
introduced over the next six months.

Company Conference Call

Management  will host a  conference  call today,  March 14, 2003 at 11:00 am PST
(2:00 pm EST) to review the fiscal  third  quarter  financial  results and other
corporate  events,  followed  by a Q&A  session.  The  call can be  accessed  by
dialing:  (800)  860-2442  within the U.S. or (412)  858-4600  outside the U.S..
Participants  are  asked to call the  assigned  number  approximately  5 minutes
before the  conference  call  begins.  A replay of the  conference  call will be
available  two hours  after the call for the  following  five  business  days by
dialing:  (877) 344-7529 within the U.S. or (412) 858-1440  outside the U.S. and
entering the following account number: 715 and the following passcode: 317050.

About THERMOGENESIS CORP.
- -------------------------
After extensive  research,  THERMOGENESIS  CORP.'S newly  introduced  technology
platforms  lead the world in their ability to produce  biological  products from
single units of blood.  Umbilical  cord blood banks are  utilizing the Company's
BioArchive  System as a critical  enabling  technology  for the  processing  and
cryogenic archiving of stem cells for transplant. The CryoSeal FS System is used
to prepare hemostatic and adhesive surgical sealants from patient blood in about
an hour. CryoSeal FS System is not available in the United States. THERMOGENESIS
CORP. has been a leading supplier of  state-of-the-art  Ultra-Rapid Blood Plasma
Freezers and Thawers to hospitals and blood banks since 1992.

   The statements contained in this release which are not historical facts are
   forward-looking statements that are subject to risks and uncertainties that
   could cause actual results to differ materially from those expressed in the
    forward-looking statements, including, but not limited to, certain delays
      beyond the Company's control with respect to market acceptance of new
   technologies and products, delays in testing and evaluation of products and
    other risks detailed from time to time in the Company's filings with the
                       Securities and Exchange Commission.

                           More Information, Contact:

                          Contact: THERMOGENESIS CORP.
                              Renee M. Ruecker, CFO

                           rruecker@thermogenesis.com
                                 (916) 858-5100



                         THERMOGENESIS CORP.
                       Condensed Balance Sheets
                             (Unaudited)


                                                                                                          
                                                                                March 31,                  June 30,
                                                                                   2003                      2002
                                                                              ------------               -----------
ASSETS
Current assets:
  Cash, cash equivalents and short term investments                             $7,208,000                $6,726,000
  Accounts receivable, net                                                       2,041,000                 1,916,000
  Inventory                                                                      2,896,000                 2,887,000
  Other current assets                                                             615,000                   115,000
                                                                              ------------               -----------

      Total current assets                                                      12,760,000                11,644,000

Equipment, net                                                                     472,000                   537,000

Other assets                                                                        54,000                    58,000
                                                                              ------------               -----------
                                                                               $13,286,000               $12,239,000
                                                                              ============               ===========


LIABILITIES AND STOCKHOLDERS' EQUITY


Current liabilities:
  Accounts payable                                                              $1,028,000                  $995,000
  Other current liabilities                                                      1,218,000                 1,018,000
                                                                              ------------               -----------

      Total current liabilities                                                  2,246,000                 2,013,000

Long-term obligations                                                               49,000                    33,000

Stockholders' equity                                                            10,991,000                10,193,000
                                                                              ------------               -----------

                                                                               $13,286,000               $12,239,000
                                                                              ============               ===========




                               THERMOGENESIS CORP.
                       Condensed Statements of Operations
                                   (Unaudited)


                                                                                              

                                                           Three Months Ended               Nine Months Ended
                                                                March 31,                        March 31,
                                                         2003            2002              2003           2002

Net revenues                                           $2,886,000     $2,735,000       $7,289,000      $6,720,000
Cost of revenues                                        2,375,000      2,101,000        6,010,000       5,211,000
                                                   --------------    ------------      -----------    ------------

    Gross profit                                          511,000        634,000        1,279,000       1,509,000
                                                   --------------    ------------      -----------    ------------

Expenses:

  Selling, general and administrative                   1,386,000      1,184,000        3,755,000       3,433,000

  Research and development                                795,000        652,000        2,183,000       1,708,000
                                                   --------------    ------------      -----------    ------------

    Total operating expenses                            2,181,000      1,836,000        5,938,000       5,141,000

Interest and other income/(expenses)                        4,000          2,000           47,000          64,000
                                                    --------------   ------------      -----------    ------------

Net loss                                              $(1,666,000)   $(1,200,000)     $(4,612,000)    $(3,568,000)
                                                    ==============   ============      ===========    ============

Basic and diluted net loss per common share                ($0.05)        ($0.04)          ($0.13)         ($0.11)
                                                    ==============   ============      ===========    ============

Shares used in computing per share data                36,570,697     32,745,103       35,700,791      32,051,362
                                                    ==============   ============      ===========    ============