One electronic, one chemical and three mechanical inventions by Utah residents have been awarded patents by the United States Patent Office.

Jerry R. Pruyne, Salt Lake City. A device for extinguishing a cigarette while preserving the physical and taste characteristics for subsequent smoking. Filed June 5, 1989. Patent 4,982,746.Robert G. Kelley, South Jordan; R. Phillip VanAusdal and Christopher S. Wadium, both of Salt Lake City. A two-stage auger system for filling a valve bag with particulate materials from a hopper. Filed Oct. 7, 1988. Patent 4,982,873.

Harvey R. Moorehead, Salt Lake City. Medical layered peel away sheath and methods. Assigned to Catheter Technology Corp., Salt Lake City. Filed Jan. 5, 1989. Patent 4,983,168.

Stephen C. Peterson, Owen D. Brimhall, Thomas J. McLaughlin, all of Salt Lake City; Charles D. Baker, Lehi; and Sam L. Sparks, Alpine. A method for separating undissolved gases from a liquid, using acoustic waves. Assigned to Technical Research Associates Inc., Salt Lake City. Filed July 25, 1988, a continuation of patent 4,759,775. Patent 4,983,189.

Grant T. Gullberg, Salt Lake City. Method and apparatus for estimating elliptical body contours in fan beam computed tomographic systems. Assigned to General Electric Co., Milwaukee, Wis. Filed Aug. 9, 1988. Patent 4,984,159.

Copies of patents are available by number for $1.50 from Box 9, Patent and Trademark Office, Washington, DC 20231.