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)). 4,574,049, Reexam. No. 90/004,422, Oct. 18, 1996, Cl. 210/639, REVERSE OSMOSIS SYSTEM, Gregory A. Pittner, Owner of Record: US Filter/Ionpure Inc., Lowell, Mass., Attorney or Agent: Peter C. Lando, Wolf, Greenfield & Sacks, Boston, Mass., Ex. Gp.: 1306, Requester: Owner 4,915,675, Reexam. No. 90/004,428, Oct. 28, 1996, Cl. 474/213, PITCH EQUALIZED CHAIN WITH FREQUENCY MODULATED ENGAGEMENT, Stellios A. Avramidis, Owner of Record: Borg-Warner Automotive Transmission & Engine Components Corp., Sterling Heights, Mich., Attorney or Agent: Robert A. Brown, Northbrook, Ill., Ex. Gp.: 3506, Requester: Mel R. Quintos, Armstrong, Westerman, Hattori, McLeland & Naughton, Washington, D.C. 4,991,049, Reexam. No. 90/004,424, Oct. 21, 1996, Cl. 361/028, ANTI-SHORT CYCLE CIRCUIT, Andrew S. Kadah, Owner of Record: Inventor, Attorney or Agent: Thomas J. Wall, Harris, Beach & Wilcox, Syracuse, N.Y., Ex. Gp.: 2104, Requester: Brenda Pomerance, Morgan & Finnegan, New York, N.Y. 5,008,725, Reexam. No. 90/004,429, Oct. 28, 1996, Cl. 257/341, PLURAL POLYGON SOURCE PATTERN FOR MOSFET, Alexander Lidow, et. al., Owner of Record: International Rectifier Corp., El Segundo, Calif., Attorney or Agent: Ostrolenk Faber Gerb & Soffen, New York, N.Y., Ex. Gp.: 2503, Requester: Peter J. Thoma, Thompson & Knight, Dallas, Tex.; McDermott, Will & Emery, Washington, D.C. 5,110,021, Reexam. No. 90/004,421, Oct. 9, 1996, Cl. 254/126, SCISSORS JACK WHICH HAS IMPROVED FORMED GEAR TEETH, Darryl L. Engel, et. al., Owner of Record: Universal Tool & Stamping Co., Butler, Ind., Attorney or Agent: Hill Steadman & Simpson, Brett A. Valiquet, Chicago, Ill., Ex. Gp.: 3203, Requester: Michelle N. Lester, Cushman Darby & Cushman, Intellectual Prop. Group, Pillsbury, Madison & Sutro, Washington, D.C. 5,125,777, Reexam. No. 90/004,423, Oct. 18, 1996, Cl. 409/234, ROTARY TOOL, Eiichi Osawa, Owner of Record: Inventor, Attorney or Agent: Patrick J. Burns, Greer, Burns & Crain, Chicago, Ill., Ex. Gp.: 3209, Requester: Richmill USA, Inc., Industry, Calif., c/o Loeb & Loeb, Los Angeles, Calif. 5,147,354, Reexam. No. 90/004,426, Oct. 25, 1996, Cl. 606/015, MID-INFRARED LASER ENDOSCOPE, Theodore A. Boutacoff, et. al., Owner of Record: Coherent, Inc., Palo Alto, Calif., Attorney or Agent: Michael A. Stallman, Limbach & Limbach, San Francisco, Calif., Ex. Gp.: 3309, Requester: Olson & Hierl, Chicago, Ill. 5,252,149, Reexam. No. 90/004,427, Oct. 25, 1996, Cl. 148/605, FERROCHROMIUM ALLOY AND METHOD THEREOF, Kevin F. Dolman, Owner of Record: Warman International, Ltd., Artarmon, Australia, Attorney or Agent: Kerkam Stowell, Kondracki & Clarke, Falls Church, Va., Ex. Gp.: 1308, Requester: GIW Industries, Inc., Grovetown, Ga., c/o George M. Thomas, Thomas, Kayden, Horstemeyer & Risley, Atlanta, Ga. 5,434,057, Reexam. No. 90/004,425, Oct. 21, 1996, Cl. 435/018, SPERM MOTILITY ASSAY AND DEVICES, Randel Dorian, Owner of Record: Quidel Corp., San Diego, Calif., Attorney or Agent: Townsend and Townsend and Crew, San Francisco, Calif., Ex. Gp.: 1211, Requester: Owner