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UTAH RANKS 8TH IN PATENTS

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Statistics from the U.S. Patent and Trademark Office indicate Utah inventors rank 8th in the nation for patents granted per capita. Many of Utah's patents are assigned to manufacturers or developed into private businesses.

Four mechanical and three chemical inventions by Utah inventors were awarded patents recently by the United States Patent Office. They include:- Randy B. Reynolds, Salt Lake City. A shelf-lighted merchandise display. Filed June 11, 1990. Patent 5,111,606.

- Justin S. Clark, Salt Lake City, and William D. Wallace, Midvale. Non-invasive system and method for enhanced arterial oxygen saturation determination and arterial blook pressure monitoring, using two light beams. Assigned to Medical Physics, Inc., Salt Lake City. Filed Dec. 29, 1988. Patent 5,111,817.

- Carl A. Rupp, Salt Lake City. Electric mixer. Filed June 25, 1990. Patent 5,112,135.

- Lonnie E. Paulos; E. Paul France, both of Salt Lake City, and Richard L. Ellingson, Draper. Variable angle, selective length tibial drill guide. Assigned to DePuy DuPont Orthopaedics, Warsaw, Ind. Filed Feb. 5, 1991. Patent 5,112,337.

- Michael T. MacKay, Sandy. Replaceable-core, silver-recovery equipment for processing liquids and method of making and using. Assigned to Pioneer Refining Services, Inc., Salt Lake City. Filed Dec. 7, 1990. Patent 5,112,390.

- Bruce R. Johnson, Salt Lake City. System and method of decreasing waste fluid in continuous backwash filtration. Assigned to Baker Hughes Incorporated, Houston, Tex. File May 22, 1991. Patent 5,112, 504.

- Karin D. Caldwell; Tun-Jen Chu, both of Salt Lake City, and William G. Pitt, Orem. DNA sequencing using fluorescence background electroblotting membrane. Assigned to University of Utah, Salt Lake City, and Brigham Young University, Provo. Filed June 14, 1989. Patent 5,112,736.

Copies of patents are available by number for $3.00 from Box 9, Patent and Trademark Office, Washington, DC 20231.