Donald K. Mitchell — 12 Patents at Microe

Donald K. Mitchell has been granted 12 US patents while listed as an inventor at Microe. The first was granted in 1991 and the most recent in March 2008. Donald K. Mitchell ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Donald K. Mitchell in Tulsa, OK, US.

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7343693	Scale assembly for optical encoder having affixed optical reference markers	Donald L. Grimes, William G. Thorburn, Stuart A. Dodson, II, Keith M. Hinrichs, Andrew Goldman +2 more	2008-03-18	$2,856,000
7324212	Optical encoder having slanted optical detector elements for harmonic suppression	William G. Thorburn	2008-01-29	$1,777,000
7193204	Multi-track optical encoder employing beam divider	—	2007-03-20	$971,000
7067797	Optical position encoder having alignment indicators providing quantitative alignment indications	William G. Thorburn, Andrew Goldman, Keith M. Hinrichs	2006-06-27	$1,460,000
6686585	Position encoder with scale calibration	Donald L. Grimes, Stuart Schechter	2004-02-03
5783752	Diffuse surface interference position sensor	William G. Thorburn, Bruce A. Horwitz	1998-07-21
5754295	Non-contacting torque sensor and displacement measuring apparatus and method	—	1998-05-19
5646730	Relative movement detecting apparatus using a detector positioned in a region of natural interference	William G. Thorburn	1997-07-08
5559600	Apparatus for detecting relative movement	—	1996-09-24
5486923	Apparatus for detecting relative movement wherein a detecting means is positioned in the region of natural interference	William G. Thorburn	1996-01-23
5022485	Method and apparatus for detonation of distributed charges	—	1991-06-11
4991684	Method and apparatus for detonation of distributed charges	—	1991-02-12

Donald K. Mitchell — 12 Patents

Issued Patents All Time

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