Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5551481 | Method of manufacturing direct drive servovalve and direct drive servovalve resulting therefrom | — | 1996-09-03 |
| 5508575 | Direct drive servovalve having magnetically loaded bearing | — | 1996-04-16 |
| 5504409 | Direct drive servovalve having two landed spool power stage | — | 1996-04-02 |
| 5417186 | Dual-acting apparatus for variable valve timing and the like | Michael T. Nelson | 1995-05-23 |
| 5285715 | Electrohydraulic servovalve with flow gain compensation | Robert C. Heagey, Donald C. Muths, Larry L. Nichols, Clyde E. Cobb | 1994-02-15 |
| 5253546 | Variable valve actuating apparatus | Michael T. Nelson | 1993-10-19 |
| 5161429 | Variable valve actuating apparatus | Michael T. Nelson | 1992-11-10 |
| 5136887 | Variable valve actuating apparatus | Michael T. Nelson | 1992-08-11 |
| 4917058 | Method of reducing pumping losses and improving brake specific fuel consumption for an internal combustion engine | Michael T. Nelson | 1990-04-17 |
| 4771742 | Method for continuous camlobe phasing | Michael T. Nelson | 1988-09-20 |
| 4770060 | Apparatus and method for variable valve timing | — | 1988-09-13 |