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)). 5,175,755, Reexam. No. 90/005,772, July 17, 2000, Cl. 378/034, USE OF A KUMAKHOV LENS FOR X-RAY LITHOGRAPHY, Muradin A. Kumakhov, Owner of Record: X Ray Optical Systems, Albany, NY, Attorney or Agent: Owner, Ex. Gp.: 2876, Requester: Collard and Roe, Roslyn, NY 5,346,306, Reexam. No. 90/005,770, July 14, 2000, Cl. 374/010, METHOD AND APPARATUS FOR MODULATED DIFFERENTIAL ANALYSIS, Michael Reading, et. al., Owner of Record: Ta Instruments, Inc., New Castle, DE, Attorney or Agent: Aslan Badhdadi, Shaw Pittman, Washington, DC, Ex. Gp.: 2859, Requester: Perkin-Elmer, Norwalk, CT; Lawrence B. Goodwin, Orrick, Herrington, and Sutcliffe, New York, NY 5,645,176, Reexam. No. 90/005,771, July 14, 2000, Cl. 211/059.2, DISPLAY RACK WITH CHANNEL FRONT MEMBER, Richard Jay, Owner of Record: Display Technologies, LLC., College Point, NY, Attorney or Agent: Kenneth P. George, Amster Rothstein and Ebenstein, New York, NY, Ex. Gp.: 3634, Requester: Owner 5,761,648, Reexam. No. 90/005,773, July 17, 2000, Cl. 705/014, INTERACTIVE NETWORK AND PROCESS USING ELECTRONIC CERTIFICATES, Steven M. Golden, et. al., Owner of Record: Coolsavings.com, Inc., Chicago, IL, Attorney or Agent: Niro Scavone Haller and Niro, Chicago, IL, Ex. Gp.: 2761, Requester: Catalina Marketing International, Inc., St. Petersburg, FL; c/o Harold N. Wells, Jenkins and Gilchrist, Chicago, IL 6,004,191, Reexam. No. 90/005,769, July 13, 2000, Cl. 451/060, PARTICULATE MATTER DELIVERY DEVICE, Henry B. Schur, et. al., Owner of Record: Simplex Medical Systems, Inc., Hallandale, FL, Attorney or Agent: Robert J. Van Der Wall, Miami, FL, Ex. Gp.: 3723, Requester: Anton J. Hopen, Smith and Hopen, Clearwater, FL