Ward; Donald A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ward; Donald A..The latest application filed is for "system and method to recapture energy of a hydraulic motor".
- Ward; Donald A. - Lady Lake FL
- Ward; Donald A. - Danube MN
- Ward; Donald A. - Weatherford TX
| Patent | Date |
|---|---|
| System and method to recapture energy of a hydraulic motor Grant 9,109,572 - Ward August 18, 2 | 2015-08-18 |
| System And Method To Recapture Energy Of A Hydraulic Motor App 20110209469 - Ward; Donald A. | 2011-09-01 |
| System and Method of Maintaining Pressure of a Hydraulic Motor App 20100281857 - Ward; Donald A. | 2010-11-11 |
| Impedance blocking filter circuit for digital subscriber line communication systems Grant 6,757,380 - Fredrickson , et al. June 29, 2 | 2004-06-29 |
| Impedance blocking filter circuit for digital subscriber line communication systems App 20030016814 - Fredrickson, Ronald L. ; et al. | 2003-01-23 |
| Connector for reducing electromagnetic field coupling Grant 5,938,479 - Paulson , et al. August 17, 1 | 1999-08-17 |
| Modular jack assembly with improved bridging arrangement Grant 4,863,393 - Ward , et al. September 5, 1 | 1989-09-05 |
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