Stephens; Donald L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Stephens; Donald L..The latest application filed is for "frame beaming reduction assembly".
- Stephens; Donald L. - LaConner WA
- Stephens; Donald L. - La Conner WA
- Stephens; Donald L. - Skagit WA
- Stephens; Donald L. - Skagit County WA
- Stephens; Donald L. - County of Skagit WA
- Stephens; Donald L. - King County WA
- Stephens; Donald L. - Bellevue WA
- Stephens; Donald L. - Los Gatos CA
| Patent | Date |
|---|---|
| Frame beaming reduction assembly Grant 5,701,969 - Stephens December 30, 1 | 1997-12-30 |
| Seat suspension Grant 5,570,866 - Stephens November 5, 1 | 1996-11-05 |
| Stiff beam suspension system Grant 5,427,404 - Stephens June 27, 1 | 1995-06-27 |
| Method of manufacturing an elongated spring member Grant 5,365,646 - Stephens November 22, 1 | 1994-11-22 |
| Axle suspension system Grant 5,046,752 - Stephens , et al. September 10, 1 | 1991-09-10 |
| Axle suspension system Grant 4,856,812 - Stephens , et al. August 15, 1 | 1989-08-15 |
| Sway bar for an engine mounting Grant 4,850,448 - Stephens July 25, 1 | 1989-07-25 |
| Method and apparatus for calculating corrected vehicle fuel economy Grant 4,845,630 - Stephens July 4, 1 | 1989-07-04 |
| Quick-response control system for low-flow engine coolant systems Grant 4,697,551 - Larsen , et al. October 6, 1 | 1987-10-06 |
| Apparatus for clamping a hose onto a coolant tube Grant 4,530,524 - Stephens July 23, 1 | 1985-07-23 |
| Air deflector assembly Grant 4,375,898 - Stephens March 8, 1 | 1983-03-08 |
| Truck with tilting cab and non-tilting separated sleeping compartment Grant 4,121,684 - Stephens , et al. October 24, 1 | 1978-10-24 |
| Muffler With Sequential Expansion Chambers Grant 3,586,123 - Marlowe , et al. June 22, 1 | 1971-06-22 |
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