Requests for Reexamination Filed - OG Date: 20 Febuary 1996

                       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)).

   4,465,597, Reexam. No. 90/004,094, Jan. 11, 1996, Cl. 210/713,
TREATMENT OF INDUSTRIAL WASTEWATERS, Steward T. Herman, et. al., Owner
of Record: Tetra Technologies, Inc., The Woodlands, Tex.,  Attorney or
Agent: Douglas H. Elliott, Tobor & Goldstein, Houston, Tex., Ex. Gp.:
1306, Requester: David L. Mossman, Rosenblatt & Redano, Houston, Tex.

   4,889,025, Reexam. No. 90/004,096, Oct. 24, 1995, Cl. 083/835, HIGH
IMPACT RESISTANT CARBIDE TIP FOR A CIRCULAR SAW, Kenneth L. Collett,
deceased, Owner of Record: Inventor,  Attorney or Agent: Arthur F.
Zobal, Wofford, Fails, Zobal & Mantooth, Ft. Worth, Tex., Ex. Gp.: 3204,
Requester: John Collett, Arsaw, Inc., McKinney, Tex.

   4,915,943, Reexam. No. 90/004,091, Jan. 5, 1996, Cl. 424/93.46,
COMPOSITIONS CONTAINING BIOSYNTHETIC PESTICIDE PRODUCTS, PROCESSES FOR
THEIR PRODUCTION AND THEIR USE, Ignace Gago, et. al., Owner of Record:
Novo Nordisk a/s, Bagsvaerd, Denmark,  Attorney or Agent: Felfe & Lynch,
New York, N.Y., Ex. Gp.: 1804, Requester: Lynn-Marcus-Wyner, Sandoz Agro
Inc., Palo Alto, Calif.

   5,070,240, Reexam. No. 90/004,095, Jan. 16, 1996, Cl. 250/288,
APPARATUS AND METHODS FOR TRACE COMPONENT ANALYSIS, Milton L. Lee, et.
al., Owner of Record: Brigham Young University, Provo, Utah,  Attorney
or Agent: M. Wayne Western, Thorpe North & Western, Sandy, Utah, Ex.
Gp.: 2506, Requester: Owner

   5,092,523, Reexam. No. 90/004,092, Jan. 16, 1996, Cl. 239/240,
MAGNETIC DRIVE TANK CLEANING APPARATUS, Jon A. Rucker, et. al., Owner of
Record: Sybron Chemicals Holdings Inc., Wilmington, Del.,  Attorney or
Agent: Marjama & Pincelli, Rochester, N.Y., Ex. Gp.: 3104, Requester:
Butterworth Sales and Repairs, Inc., c/o Paul R. Morico, Arnold White &
Durkee, Houston, Tex.

   5,134,557, Reexam. No. 90/004,090, Dec. 1, 1995, Cl. 362/061, MEANS
AND METHOD FOR INCREASING OUTPUT, EFFICIENCY, AND FLEXIBILITY OF USE OF
AN ARC LAMP, Myron K. Gordin, et. al., Owner of Record: Musco Corp.,
Oskaloosa, Iowa,  Attorney or Agent: Zarley McKee Thomte Vorhees &
Sease, Des Moines, Iowa, Ex. Gp.: 3406, Requester: Owner

   5,285,647, Reexam. No. 90/004,082, Dec. 21, 1995, Cl. 062/127,
REFRIGERANT HANDLING SYSTEM WITH AIR PURGE AND MULTIPLE REFRIGERANT
CAPABILITIES, Kenneth W. Manz, et. al., Owner of Record: SPX Corp.,
Muskegon, Mich.,  Attorney or Agent: Barnes, Kisselle, Raisch, Choote,
Whittemore & Hulbert, Detroit, Mich., Ex. Gp.: 3404, Requester: Snap-On
Inc., Kenosha, Wis., c/o Harold V. Stotland & J. Terry Stratman Emrich &
Dithman, Chicago, Ill.

   5,327,375, Reexam. No. 90/004,093, Dec. 29, 1995, Cl. 365/149, DRAM
CELL UTILIZING NOVEL CAPACITOR, Eliyahou Harari, Owner of Record:
Inventor,  Attorney or Agent: Steven F. Caserza, Flehr Hohbach Test
Albritton & Herbert, San Francisco, Calif., Ex. Gp.: 2511, Requester:
Owner

   5,350,442, Reexam. No. 90/004,097, Jan. 5, 1996, Cl. 095/115, GAS
HANDLING SYSTEM AND ADSORBENT DRYER REGENERATION APPARATUS, John E.
Thelen, et. al., Owner of Record: Pneumatic Products Corp., Ocala, Fla.,
 Attorney or Agent: Dickstein Shapiro & Morin, Washington, D.C., Ex.
Gp.: 1305, Requester: Louise A. Brambani Pitts & Brittian, Knoxville,
Tenn.

   5,376,409, Reexam. No. 90/004,099, Jan. 16, 1996, Cl. 427/248.1,
PROCESS AND APPARATUS FOR THE USE OF SOLID PRECURSOR SOURCES IN LIQUID
FORM FOR VAPOR DEPOSITION OF MATERIALS, Alain E. Kaloyeros, et. al.,
Owner of Record: The Research Foundation of State University of New
York, Albany, N.Y.,  Attorney or Agent: Irving M. Freedman, Chapel Hill,
N.C., Ex. Gp.: 1112, Requester: Steven J. Hultquist, Intellectual
Property/Technology Law, Research Triangle Park, N.C.

   5,439,541, Reexam. No. 90/004,098, Jan. 11, 1996, Cl. 156/182, METHOD
FOR PRODUCING AND USING CROSSLINKED COPOLYMERS, James Economy, Owner of
Record: The Board of Trustees of the University of Illinois, Urbana,
Ill.,  Attorney or Agent: Martin L. Katz, Dressler Goldsmith Shore &
Milnamow, Chicago, Ill., Ex. Gp.: 1304, Requester: Owner