Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11994121 | Piston in piston variable displacement hydraulic device | — | 2024-05-28 |
| 11506229 | Modular hydraulic device | — | 2022-11-22 |
| 11333145 | Cylinder on demand hydraulic device | — | 2022-05-17 |
| 11293461 | Cylinder on demand hydraulic device | — | 2022-04-05 |
| 11118611 | Cylinder on demand hydraulic device | — | 2021-09-14 |
| 9850894 | Self priming hydraulic pump and circuit | — | 2017-12-26 |
| 9784253 | Variable displacement piston-in-piston hydraulic unit | — | 2017-10-10 |
| 9689409 | Passive piston hydraulic device with partition | — | 2017-06-27 |
| 9091283 | Passive piston unit | Reini Strasser | 2015-07-28 |
| 9068644 | Gear hub having a gear pump | — | 2015-06-30 |
| 8746128 | Variable displacement piston-in-piston hydraulic unit | — | 2014-06-10 |
| RE44100 | Regenerative brake system and hydraulic pump/motor for use therein | — | 2013-03-26 |
| RE43737 | Regenerative brake system and hydraulic pump/motor for use therein | — | 2012-10-16 |
| 7827943 | Variable compression ratio system | — | 2010-11-09 |
| 7828395 | Regenerative brake system and hydraulic pump/motor for use therein | — | 2010-11-09 |
| 7762066 | Regeneration system | — | 2010-07-27 |
| 7213691 | Antilock brake system | Andrew M. Spriet | 2007-05-08 |
| 7100564 | Variable angle cam-drive engine and a power conversion mechanism for use therein | — | 2006-09-05 |
| 6942071 | Self-energizing brake system | Andrew M. Spriet | 2005-09-13 |
| 6929103 | Self-energizing brake system | — | 2005-08-16 |
| 6725815 | Cam-drive engine and cylinder assembly for use therein | — | 2004-04-27 |
| 5445216 | Heat exchanger | — | 1995-08-29 |
| 5287917 | Heat exchanger | — | 1994-02-22 |
| 5100142 | Puzzle having simultaneously rotating geared elements | — | 1992-03-31 |