Requests for Reexamination 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)).

   4,363,877, Reexam. No. 90/004,861, Dec. 10, 1997, Cl. 435/317.1,
RECOMBINANT DNA TRANSFER VECTORS, Howard M. Goodman, et. al., Owner of
Record: The Regents of the University of California, Berkeley, Calif.,
Attorney or Agent: Gary J. Sertich, Arnold White and Durkee, Houston,
Tex., Ex. Gp.: 1815, Requester: Genentech, Inc., c/o Margaret B. Kelley,
Rogers and Wells, New York, N.Y.

   4,785,450, Reexam. No. 90/004,867, Dec. 12, 1997, Cl. 370/095,
APPARATUS AND METHOD FOR OBTAINING FREQUENCY AGILITY IN DIGITAL
COMMUNICATION SYSTEMS, Duane R. Bolgiano, et. al., Owner of Record:
Interdigital Technology Corp., Wilmington, Del., Attorney or Agent:
Gerald B. Halt, Jr., Volpe and Koenig, Philadelphia, Pa., Ex. Gp.: 2731,
Requester: Owner

   4,817,089, Reexam. No. 90/004,868, Dec. 12, 1997, Cl. 370/095,
SUBSCRIBER RF TELEPHONE SYSTEM FOR PROVIDING MULTIPLE SPEECH AND/OR DATA
SIGNALS SIMULTANEOUSLY OVER EITHER A SINGLE OR PLURALITY OF RF CHANNELS,
Eric Paneth, et. al., Owner of Record: Interdigital Technology Corp.,
Wilmington, Del., Attorney or Agent: Gerald B. Halt, Jr., Volpe and
Koenig, Philadelphia, Pa., Ex. Gp.: 2731, Requester: Owner

   5,022,024, Reexam. No. 90/004,869, Dec. 12, 1997, Cl. 370/050,
SUBSCRIBER RF TELEPHONE SYSTEM FOR PROVIDING MULTIPLE SPEECH AND/OR DATA
SIGNALS SIMULTANEOUSLY OVER EITHER A SINGLE OR PLURALITY OF RF CHANNELS,
Eric Paneth, et. al., Owner of Record: Interdigital Technology Corp.,
Wilmington, Del., Attorney or Agent: Gerald B. Halt, Jr., Volpe and
Koenig, Philadelphia, Pa., Ex. Gp.: 2731, Requester: Owner

   5,170,528, Reexam. No. 90/004,866, Dec. 11, 1997, Cl. 016/018CG,
OBSTACLE CLEARING DEVICE FOR WHEELS, John J. Navar, et. al., Owner of
Record: Movit, Inc., Corpus Christi, Tex., Attorney or Agent: Michael A.
O'Neil, Gardere and Wynne, Dallas, Tex., Ex. Gp.: 3209, Requester: Owner

   5,254,390, Reexam. No. 90/004,863, Dec. 9, 1997, Cl. 428/156,
PLANO-CONVEX BASE SHEET FOR RETROREFLECTIVE ARTICLES AND METHOD FOR
MAKING SAME, Shih-Lai Lu, Owner of Record: Minnesota Mining and
Manufacturing Co., St. Paul, Minn., Attorney or Agent: Peter L. Olson,
3M Office of Patent Counsel, St. Paul, Minn., Ex. Gp.: 1315, Requester:
Owner

   5,382,207, Reexam. No. 90/004,860, Dec. 9, 1997, Cl. 482/054,
EXERCISE TREADMILL, Richard E. Skowronski, et. al., Owner of Record:
Brunswick Corp., Lake Forrest, Ill., Attorney or Agent: Michael B.
Murray, Chicago, Ill., Ex. Gp.: 3302, Requester: Precor Inc., c/o Thomas
D. Theisen, Christensen, O'Connor, Johnson & Kindness, Seattle, Wash.

   5,398,894, Reexam. No. 90/004,836, Nov. 13, 1997, Cl. 246/028R,
VIRTUAL BLOCK CONTROL SYSTEM FOR RAILWAY VEHICLE, Robert D. Pascoe,
Owner of Record: Union Switch and Signal Inc., Pittsburgh, Pa., Attorney
or Agent: John E. Grosselin III, Buchanan Ingersoll, Pittsburgh, Pa.,
Ex. Gp.: 3103, Requester: Owner

   5,443,960, Reexam. No. 90/004,865, Dec. 10, 1997, Cl. 435/013, METHOD
FOR THE DIAGNOSIS OF BLOOD COAGULATION DISORDERS, Bjorn Dahlback, Owner
of Record: T A C Thombosis and Coagulation AB, Malmo, Sweden, Attorney
or Agent: Steven M. Bauer, Testa Hurwitz and Thibeault, Boston, Mass.,
Ex. Gp.: 1211, Requester: Ian C. McLeod, McLeod and Moyne, Okemos, Mich.

   5,574,260, Reexam. No. 90/004,864, Dec. 9, 1997, Cl. 174/102R,
COMPOSITE CONDUCTOR HAVING IMPROVED HIGH FREQUENCY SIGNAL TRANSMISSION
CHARACTERISTICS, James R. Broomall, et. al., Owner of Record: W L Gore
and Associates Inc., Newark, Del., Attorney or Agent: Victor M. Genco,
Jr., W L Gore and Associates, Newark, Del., Ex. Gp.: 2109, Requester:
Owner

   5,589,963, Reexam. No. 90/004,837, Nov. 13, 1997, Cl. 349/119,
PIXELATED COMPENSATORS FOR TWISTED NEMATIC LIQUID CRYSTAL DISPLAYS,
William J. Gunning, et. al., Owner of Record: Rockwell International
Corp., Cedar Rapids, Iowa, Attorney or Agent: Gregory G. Williams,
Rockwell International Corp., Cedar Rapids, Iowa, Ex. Gp.: 2515,
Requester: Joseph A. Rhoa, Myers Liniak and Berenato, Bethesda, Md.

   5,620,465, Reexam. No. 90/004,870, Dec. 12, 1997, Cl. 604/028, METHOD
FOR THE PREPARATION OF PRE-FILLED PLASTIC SYRINGES, Gayle Heffernan, et.
al., Owner of Record: Bracco International, B V, Amsterdam, The
Netherlands, Attorney or Agent: George Hoare Jr., Rogers and Wells, New
York, N.Y., Ex. Gp.: 3306, Requester: Gregory L. Bradley, Medrad, Inc.,
Indianola, Pa.

   5,636,667, Reexam. No. 90/004,835, Nov. 12, 1997, Cl. 141/059,
CONVERSION OF FUEL DISPENSERS TO PROVIDE FOR VACUUM ASSISTED VAPOR
RECOVERY, Jonathan P. Young, et. al., Owner of Record: Dover Corp., New
York, N.Y., Attorney or Agent: Dinsmore and Shohl, Cincinnati, Ohio, Ex.
Gp.: 3105, Requester: Owner