Six patents awarded Utah inventors by the United States Patent Office include a bait holder, an arrow rest, and a trailer wheel mechanism.

Nick A. Yerkovich, 7439 S. 300 East, Midvale 84047. A bait holder for retaining live bait, which is attachable to fishing hooks. Filed Nov. 14, 1988. Patent 4,947,575.Marlow W. Larson, Ogden. An arrow rest for archery bows. Assigned to Browning, Morgan. Filed Nov. 14, 1988. Patent 4,947,823.

Robert J. VanDyke, 290 S. 1300 East, Springville 84663. A container for CD or cassette covers. Filed Aug. 7, 1989. Patent 4,948,022.

Richard R. Lyman, Bountiful. An inflatable external fuel tank. Assigned to TRE Corp., Los Angeles. Filed April 27, 1987. Patent 4,948,070.

Fred T. Smith and Fred P. Smith, both of Alpine. Apparatus for controlling the displacement of rear wheels of a trailer between retracted and extended positions. Assigned to Redwood Reliance Sales Co., Cotati, Calif. Filed Feb. 3, 1989. Patent 4,948,155.

Douglas MacGregor, Salt Lake City, and Mark A. Smith, Boulder, Colo. Method and apparatus for separating ions from liquids to produce separate diluted and concentrated effluents. Assigned to Lion Capital Ltd., Denver. Filed Sep. 23, 1988. Patent 4,948,514.