Adverse Decisions In Interference

   In the designated interferences involving the following
patents, final decisions have been rendered that the respective
patentees are not entitled to patents containing the claims listed.

   Patent No. 5,556,610, Feng Yan, Michel Schneider, Jean Brochot,
GAS MIXTURES USEFUL AS ULTRASOUND CONTRAST MEDIA, CONTRAST AGENTS
CONTAINING THE MEDIA AND METHOD, Interference No. 104,427, final
judgment adverse to the patentees rendered July 31, 2001, as to claims
1-11, 14-23, and 26.


                                              WANDA M. TIGNER, Sup'v. Legal
                                                       Instruments Examiner
                                    Board of Patent Appeals & Interferences
                                                             (703) 308-9797