Another artificial-heart invention and a calligraphic color display are among the eight patents awarded Utah inventors by the United States Patent Office.

Gordon A. Tibbitts, Salt Lake City. Apparatus for taking formation cores. Assigned to Baker Hughes Incorporated, Houston, Tex. Filed July 6, 1988. Patent 4,981,183.William T. Dalebout, and Curt G. Bingham, both of Logan. Exercise machines with dual resistance means. Assigned to Proform Fitness Products, Inc., Logan. Filed Feb. 16, 1990. Patent 4,981,294.

Richard C. Lumbert, Lehi. An indwelling apparatus by which a medical patient is subject to involuntary respiratory therapy and aspiration. Filed Nov. 1, 1988, a continuation of patent 4,834,776. Patent 4,981,466.

John W. Holfert, Bountiful, and Don B. Olsen, Salt Lake City. An artificial-heart device for producing heart pumping action as a part of a total artificial-heart implant. Filed Nov. 20, 1989, a continuation of application Aug. 15, 1988. Patent 4,981,484.

Mark C. Hesley, Logan. A method for preparing a veterinary vaccine for immunization of sheep against bacterially induced lamb epididymitis. Assigned to Utah State University Foundation, Logan. Filed Sep. 17, 1987, a continuation of application Mar. 7, 1986. Patent 4,981,685.

Richard A. Hintze, Sandy. A color display system for providing a dynamic color presentation using calligraphic display signals. Assigned to Evans & Sutherland Computer Corp., Salt Lake City. Filed Sep. 19, 1986, a continuation of application Oct. 5, 1978 and patent 4,499,457. Patent 4,982,178.

C. Martin Rasmussen, Fruit Heights. Camper tie-down holder. Assigned to Recreation Systems, Inc., Fruit Heights. Filed Oct. 9, 1987. Design patent 313,338.

Eugenia N. Peterson, Salt Lake City. Necklace. Filed July 12, 1982. Design patent 313,368.

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