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Ruler, handheld device receive U.S. patents

Macaw sculpture and an organizer are also patented

Fifteen patents were awarded to Utah inventors on Feb. 27. U.S. patents are granted each Tuesday.

The new patents include:

Fraction ruler. Sally L. Wackowski, Vernal. Assigned to Extra Measures Inc., Franklin Park, Ill. Filed April 14, 1998. Patent No. 6,192,594.

Noninvasive electromagnetic fluid level sensor. David Blaine, Salt Lake City. Assigned to Zevex Inc., Salt Lake City. Filed April 2, 1998, a continuation-in-part of patent no. 6,023,970, filed April 2, 1997, which is a continuation-in-part of patent no. 5,789,675, filed Aug. 4, 1995. Patent No. 6,192,752.

Sample focusing device and method. Yong Jiang, Marcia E. Hansen, Michael E. Miller and Andreas M. Kummerow, all of Salt Lake City. Assigned to FFFractionation LLC, Salt Lake City. Filed Dec. 23, 1999, a divisional application of patent no. 6,109,119, filed Feb. 27, 1998. Patent No. 6,192,764.

Method for forming a non-uniform interface adjacent ultra hard material. Ronald K. Eyre, Orem; Madapusi K. Keshavan, Sandy. Assigned to Smith International Inc., Houston. Filed March 25, 1998. Patent No. 6,193,001.

Organizer with work surface. Monica Meyer Kearl, Mantua. Assigned to Jamin Inc., Mantua. Filed Dec. 9, 1997. Patent No. 6,193,118.

Device and method for connecting a fluid conduit to a receiving fitting. Brian A. Jones, South Jordan; Nathan L. Porter, Kaysville; Curtis Kelly, Payson. Assigned to Selerity Technologies Inc., Salt Lake City. Filed Feb. 25, 1999, claiming priority to provisional application ser. no. 60/076,112, filed Feb. 27 1998. Patent No. 6,193,286.

Surgical combination apparatus having first and second instruments operated from a common actuator. Damond Holsinger, Midvale. Assigned to Ballard Medical Products, Draper. Filed July 12, 1999, a continuation of patent no. 5,947,978, filed April 15, 1996. Patent No. 6,193,729.

Computerized method of identifying and locating resonating, self-hybridizing nucleic acid elements. Jeffrey Cohen, Salt Lake City. Filed May 5, 1999. Patent No. 6,194,155.

Analog to digital conversion system that enables high-level signal excursions without clipping. Robin M. Urry, Draper; Roger T. Johnsen, Salt Lake City; Richard A. Kreifeldt, Sandy. Assigned to Harman Music Group, Sandy. Filed Sept. 25, 1998. Patent No. 6,195,029.

Method for time based shadow rendering. Harold Dee Gardiner, Sandy. Assigned to Evans & Sutherland Computer Corp., Salt Lake City. Filed Dec. 3, 1998. Patent No. 6,195,099.

Personal data assistant with remote control capabilities. Carl Ketcham, Taylorsville. Assigned to 3Com Corp., Santa Clara, Calif. Filed March 9, 1998. Patent No. 6,195,589.

Method and apparatus for master-slave control in an educational classroom communication network. Thomas W. Greaves, Palo Alto, Calif.; Richard A. Milewski, Sunnyvale, Calif.; Fred B. Schade, Highland; David R. Moore, Redwood City, Calif.; Timothy G. Law, Pleasant Grove. Assigned to Netschools Corp., Santa Clara, Calif. Filed March 18, 1998. Patent No. 6,195,687.

Data corruption detection apparatus and method. Philip M. Adams, Salt Lake City. Filed Sept. 14, 1998. Patent No. 6,195,767.

Triaxial normal and shear force sensor. Allen R. Grahn, Salt Lake City. Assigned to Bonneville Scientific Inc., Salt Lake City. Filed Feb. 18, 1999, a reissue of patent no. 5,604,314, filed July 19, 1995, which is a continuation-in-part of patent no. 5,553,300, filed Oct. 6, 1994. Reissue Patent No. RE 37,065.

The ornamental design for a macaw sculpture. Ryan Peterson, Salt Lake City. Assigned to Sarcos L.C., Salt Lake City. Filed April 12, 2000. Design Patent No. Des. 438,143.

Karl R. Cannon is a partner in the law firm of Clayton, Howarth & Cannon, P.C., specialists in patent, trademark and copyright law. He may be contacted at 801-255-5335 or by e-mail at Copies of patents are available by mail for $3 each from U.S. Patent and Trademark Office, Box 9 (Copy Sales), Washington, DC 20231; by credit card via telephone 703-308-9726 or toll free 800-972-6382; facsimile 703-305-8759; or e-mail Patents can also be viewed and printed free of charge from several Internet sites, including or