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Eight chemical and seven mechanical inventions by Utah inventors were awarded patents by the United States Patent Office.

Robert B. Clay, Bountiful. A blasting composition containing 10 percent to 40 percent water-in-oil emulsion and 60 percent to 90 percent undissolved particulate solid oxidizer salt. Assigned to Hanex Products Inc., Bountiful. Original patent 4,111,727 (1978). Application for reissue July 21, 1986. Re. 33,788.Kendel S. Twitchell, Bennion, and Elden K. Twitchell, South Jordan. Mechanical apparatus for lifting and moving humans. Filed Nov. 22, 1989. Patent 5,077,844.

William B. Sinykin, Logan. Snow grooming comb with angularly positioned elongate teeth. Assigned to Logan Manufacturing Company, Logan. Filed May 13, 1991. Patent 5,077,919.

Dennis Hancock, Cedar City, and George Gates, South Jordan. A utility carrier for attachment to a vertical surface for carrying elongated objects (guns). Filed May 20, 1991, a continuation of application April 2, 1990. Patent 5,078,279.

Purvis Fultz, Beryl. Fence tensioning apparatus. Filed July 1, 1991. Patent 5,078,365.

Marvin L. Carlston, Lehi, and Vaughn R. Anderson, Orem. Expandable blade, composite plastic, broadhead hunting arrow tip. Filed Sep. 12, 1990. Patent 5,078,407.

Stanley J. Kippen, Ogden. A one-piece, model glider craft capable of sustained flight in a glide mode in both atmospheric and underwater environments. Filed Aug. 3, 1990. Patent 5,078,639.

Forest D. Edwards, Danny L. Hardwick and Li Yuan, all of Salt Lake City. An assembly for supporting a drain bag in combination with a urology table. Assigned to Diasonics Inc., Milpitas, Calif. Filed Feb. 5, 1991. Patent 5,078,705.

Hani A. M. Abodishish, Ogden, and R. James Adams, West Point. A vacuum furnace for continuous distillation of sponge refractory metals. Assigned to Westinghouse Electric Corp., Pittsburgh. Filed Oct. 31, 1990. Patent 5,078,789.

Scott Whittier, Orem. A reverse osmosis water filtration system for home use. Assigned to Nature's Sunshine Products Inc., Spanish Fork. Filed Feb. 23, 1990. Patent 5,078,864.

David DiGregorio and Brent C. Black, both of Salt Lake City. Clarifier cleaning apparatus. Assigned to Baker Hughes Inc., Houston. Filed Apr. 18, 1990, a continuation of application March 20, 1989. Patent 5,078,869.

Brent C. Black, Salt Lake City; Steven G. Coombs, Layton; John B. Ainsworth and John Thorum, both of Salt Lake City. An apparatus for cleaning a liquid filter. Assigned to Baker Hughes Inc., Houston. Filed April 2, 1990. Patent 5,078,873.

Scott Whittier and Calvin W. McCausland, both of Orem. Apparatus for multistage purification of water. Assigned to Trysan Research Inc., Provo. Filed Jan. 17, 1990. Patent 5,078,876.

Donald O. Voit, Ogden. Removal of iron contamination from zirconium chloride solution. Assigned to Westinghouse Electric Corp., Pittsburgh. Filed Oct. 31, 1990. Patent 5,078,887.

Bryon J. Tarbet, Jerald S. Bradshaw, Krzysztof E. Krakowisk, Reed M. Izatt and Ronald L. Bruening, all of Provo. A method for concentration and removal of desired heavy metal ions from a source solution. Assigned to Brigham Young University, Provo. Filed Nov. 6, 1989. Patent 5,078,978.

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