Hofmann; Heath F.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hofmann; Heath F..The latest application filed is for "brushless, self-excited synchronous field-winding machine".
- Hofmann; Heath F. - Ann Arbor MI
- Hofmann; Heath F. - State College PA
| Patent | Date |
|---|---|
| Brushless, self-excited synchronous field-winding machine Grant 10,770,999 - Hofmann Sep | 2020-09-08 |
| Brushless, Self-Excited Synchronous Field-Winding Machine App 20190319567 - HOFMANN; Heath F. | 2019-10-17 |
| Electromechanical flywheel device Grant 9,831,742 - Kalev , et al. November 28, 2 | 2017-11-28 |
| Electromechanical flywheels Grant 9,673,680 - Kalev , et al. June 6, 2 | 2017-06-06 |
| Homopolar motor-generators Grant 9,548,645 - Kalev , et al. January 17, 2 | 2017-01-17 |
| Electromechanical flywheel Grant 9,148,037 - Kalev , et al. September 29, 2 | 2015-09-29 |
| Electromechanical Flywheel Device App 20150123505 - Kalev; Claude Michael ; et al. | 2015-05-07 |
| Homopolar Motor-generators App 20150097459 - Kalev; Claude Michael ; et al. | 2015-04-09 |
| Homopolar motor-generator Grant 8,917,004 - Kalev , et al. December 23, 2 | 2014-12-23 |
| Electromechanical Flywheels App 20140300227 - Kalev; Claude Michael ; et al. | 2014-10-09 |
| Homopolar Motor-generator App 20140084714 - Kalev; Claude Michael ; et al. | 2014-03-27 |
| Electromechanical Flywheel App 20140084756 - Kalev; Claude Michael ; et al. | 2014-03-27 |
| Three plus three phase flywheel electric power supply Grant 7,855,465 - Kalev , et al. December 21, 2 | 2010-12-21 |
| Three Plus Three Phase Flywheel Electric Power Supply App 20100207468 - Kalev; Claude Michael ; et al. | 2010-08-19 |
| Three plus three phase flywheel power supply Grant 7,633,172 - Kalev , et al. December 15, 2 | 2009-12-15 |
| Three Plus Three Phase Flywheel Power Supply App 20090152874 - Kalev; Claude Michael ; et al. | 2009-06-18 |
| Feedforward controller for synchronous reluctance machines Grant 7,489,100 - Hofmann , et al. February 10, 2 | 2009-02-10 |
| Feedforward Controller For Synchronous Reluctance Machines App 20080150469 - Hofmann; Heath F. ; et al. | 2008-06-26 |
| Feedforward controller for synchronous reluctance machines Grant 7,170,255 - Hofmann , et al. January 30, 2 | 2007-01-30 |
| Feedforward controller for synchronous reluctance machines Grant 7,078,876 - Hofmann , et al. July 18, 2 | 2006-07-18 |
| Feedforward controller for synchronous reluctance machines App 20060076919 - Hofmann; Heath F. ; et al. | 2006-04-13 |
| Sensorless control of a harmonically driven electrodynamic machine for a thermoacoustic device or variable load Grant 6,883,333 - Shearer , et al. April 26, 2 | 2005-04-26 |
| Feedforward controller for synchronous reluctance machines App 20050007061 - Hofmann, Heath F. ; et al. | 2005-01-13 |
| Sensorless control of a harmonically driven electrodynamic machine for a thermoacoustic device or variable load App 20040095028 - Shearer, Tony L. ; et al. | 2004-05-20 |
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