Utah inventors were awarded patents for medical devices, chemicals, and a drill.
George W. Ford, Jr., Salt Lake City. A foam dispensing device. Assigned to Ballard Medical Products, Midvale. Application for reissue filed Dec. 23, 1985. Original patent 4,531,660. Reissue 33,564.Gordon A. Tibbitts, Salt Lake City, and Mark L. Jones, Midvale. A drill bit having improved steerability for drilling deviated portions of boreholes in earth formations. Assigned to Eastman Christensen Company, Salt Lake City. Filed Aug. 14, 1989, a continuation of application Jan. 20, 1988. Patent 5,004,057.
William D. Wallace, Salt Lake City. System for measuring fluid pressure in a balloon of a catheter. Filed Aug. 13, 1990, a continuation of application Aug. 10, 1988. Patent 5,004,472.
Russell I. Alley and George E. Caine, both of Salt Lake City. A composition for repairing damaged concrete surfaces comprising magnesium oxychloride compositions. Filed Nov. 4, 1988. Patent 5,004,505.
Jerry C. Bommer, Ogden, and Bruce F. Burnham, Logan. An organic molecule called tetrapyrrole aminocarboxylic acid. Assigned to Nippon Petrochemicals Company, Ltd., Tokyo, Japan. Filed Dec. 24, 1987. Patent 5,004,811.
Copies of patents are available by number for $1.50 from Box 9, Patent and Trademark Office, Washington D.C. 20231.