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Patent applications and USPTO patent grants for Koehler; Gerard.The latest application filed is for "variable reluctance dynamo-electric rotary machine provided with united magnetic, electric and polarising circuits and method for production thereof".
Patent | Date |
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Variable reluctance dynamo-electric rotary machine provided with united magnetic, electric and polarising circuits and method for production thereof Grant 7,605,515 - Koehler October 20, 2 | 2009-10-20 |
Variable Reluctance Dynamo-Electric Rotary Machine Provided with United Magnetic, Electric and Polarising Circuits and Method for Production Thereof App 20080258572 - Koehler; Gerard | 2008-10-23 |
Dynamoelectric machine composed of sectors having transverse fluxes Grant 5,543,674 - Koehler August 6, 1 | 1996-08-06 |
Bistable electromagnet with several armatures comprising a permanent magnet Grant 4,556,858 - Koehler December 3, 1 | 1985-12-03 |
Electromagnetic relay with double-breaking contacts Grant 4,216,452 - Arnoux , et al. August 5, 1 | 1980-08-05 |
Electromagnet magnetic circuit with permanent-magnet armature Grant 4,191,937 - Koehler , et al. March 4, 1 | 1980-03-04 |
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