Requests for Reexaminations Filed

   Notice under 37 CFR 1.11(c). The requests for reexamination listed
below are open to inspection by the general public in the indicated
Examining Groups. Copies of the requests and related papers may be
obtained by paying the fee therefor established in the Rules (37 CFR
1.19(a)).
   In the event correspondence to the patent owner is not received, this
notice will be considered to be constructive notice to the patent owner
and reexamination will proceed (37 CFR 1.248(a)(5) and 1.525(b)).

   4,718,106, Reexam. No. 90/004,655, May 20, 1997, Cl. 455/002, SURVEY
OF RADIO AUDIENCES, Lee S. Weinblatt, Owner of Record: The Pretesting
Co., Tenafly, N.J., Attorney or Agent: Thomas Langer, Frishauf, Holtz,
Goodman Langer & Chick, New York, N.Y., Ex. Gp.: 2602, Requester: Owner

   5,254,002, Reexam. No. 90/004,658, June 4, 1997, Cl. 433/008,
ORTHODONTIC PLASTIC BRACKET, James F. Reher, et. al., Owner of Record:
Ormco Corp., Glendora, Calif., Attorney or Agent: Gregory F. Ahrens,
Wood Herron & Evans, Cincinnati, Ohio, Ex. Gp.: 3303, Requester: GAC
International, Central Islip, N.Y. c/o Kenyon & Kenyon, New York, N.Y.

   5,558,094, Reexam. No. 90/004,656, June 3, 1997, Cl. 128/662.2,
METHODS FOR USING PERSISTENT GASES AS ULTRASOUND CONTRAST MEDIA, Steven
C. Quay, Owner of Record: Sonus Pharmeceuticals, Inc., Costa Mesa,
Calif., Attorney or Agent: Limbach & Limbach, San Francisco, Calif., Ex.
Gp.: 3305, Requester: Molecular Biosystems, Inc., San Diego, Calif.;
Thomas E. Ciotti, Morrison & Foerster, Palo Alto, Calif.

   5,573,751, Reexam. No. 90/004,657, June 3, 1997, Cl. 424/9.52,
PERSISTENT GASEOUS BUBBLES AS ULTRASOUND CONTRAST MEDIA, Steven C. Quay,
Owner of Record: Sonus Pharmeceuticals, Inc., Costa Mesa, Calif.,
Attorney or Agent: Limbach & Limbach, San Francisco, Calif., Ex. Gp.:
1819, Requester: Molecular Biosystems, Inc., San Diego, Calif.; Thomas
E. Ciotti, Morrison & Foerster, Palo Alto, Calif.