Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11591952 | High performance turbo-hydraulic compressor | Richard S. Leemhuis, Donald G. Shiloff | 2023-02-28 |
| 10927936 | Power conversion device | — | 2021-02-23 |
| 10082070 | High performance turbo-hydraulic compressor | Richard S. Leemhuis, Donald G. Shiloff | 2018-09-25 |
| 9915192 | Power conversion device | — | 2018-03-13 |
| 9080503 | Hydraulic turbo accelerator apparatus | Richard S. Leemhuis, Donald G. Shloff | 2015-07-14 |
| 6691925 | Heater/defroster for an automobile | Ronald C. Roberts, Christopher Craft, Vinod K. Nanda, Richard S. Leemhuis | 2004-02-17 |
| 6612822 | Hydraulic motor system | John S. Hill, Michael J. Mientus | 2003-09-02 |
| 6158216 | Hydraulically powered fan system for vehicles | John S. Hill | 2000-12-12 |
| 6024803 | Replenishment of vehicle windshield washer solvent using rainwater | Harry C. Buchanan, Jr. | 2000-02-15 |
| 6021641 | Hydraulically powered fan system for vehicles | John S. Hill | 2000-02-08 |
| 6020704 | Windscreen sensing and wiper control system | — | 2000-02-01 |
| 6016657 | Automotive hydraulic system and method | — | 2000-01-25 |
| 5960628 | Hydraulically powered fan and power steering in vehicle | Kerry A. Machesney | 1999-10-05 |
| 5946911 | Fluid control system for powering vehicle accessories | Robert V. Eyink | 1999-09-07 |
| 5881630 | Apparatus and method of controlling fluid flow between a plurality of vehicle components | John S. Hill | 1999-03-16 |
| 5687568 | Hydraulic motor system | — | 1997-11-18 |
| 5669461 | Automotive hydraulic system and method | — | 1997-09-23 |
| 5669986 | Replenishment of vehicle windshield washer solvent using rainwater | Harry C. Buchanan, Jr. | 1997-09-23 |
| 5668478 | Windshield rain sensor | — | 1997-09-16 |
| 5561978 | Hydraulic motor system | — | 1996-10-08 |
| 5535845 | Automotive hydraulic system and method | — | 1996-07-16 |
| 5304936 | Electrical water drop sensor with varying gap width | — | 1994-04-19 |
| 5176107 | Pet litter | — | 1993-01-05 |
| 5168834 | Litter handling system | — | 1992-12-08 |
| 4904908 | Anti blade set vehicle wiper park mechanism | — | 1990-02-27 |