Don Lefevre

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Rapid City, SD, US

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Patents Grantslast 30 patents

Information Patent Grant
Long-range electronic identification system
- Patent number 10,757,915
- Issue date Sep 1, 2020
- Donald Keith Lefevre
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Ground penetrating radar with variable dwell time
- Patent number 9,541,640
- Issue date Jan 10, 2017
- David R. Hall
- G01 - MEASURING TESTING
Information Patent Grant
Coadunate emitter/detector for use with fiber optic devices
- Patent number 5,821,530
- Issue date Oct 13, 1998
- Wireless Control Systems, Inc.
- Donald K. Lefevre
- G02 - OPTICS
Information Patent Grant
Remote fiber optic electrical switch using light pulse signals
- Patent number 5,408,550
- Issue date Apr 18, 1995
- Wireless Control System, Inc.
- Donald K. Lefevre
- G02 - OPTICS
Information Patent Grant
Remote fiber optic electrical switch
- Patent number 5,163,112
- Issue date Nov 10, 1992
- Wireless Control Systems, Inc.
- Donald K. Lefevre
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Long-Range Electronic Identification System
- Publication number 20170181401
- Publication date Jun 29, 2017
- Donald Keith Lefevre
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Application
Ground Penetrating Radar with Variable Dwell Time
- Publication number 20150035693
- Publication date Feb 5, 2015
- David R. Hall
- G01 - MEASURING TESTING
Information Patent Application
Long-Range Electronic Identification System
- Publication number 20150022321
- Publication date Jan 22, 2015
- Donald Keith Lefevre
- G06 - COMPUTING CALCULATING COUNTING