Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5297595 | Apparatus for introducing volatile fuel into a storage tank | Clay Haile | 1994-03-29 |
| 5295521 | Self-contained fuel filler system | — | 1994-03-22 |
| 5263445 | Apparatus and method for changing oil in an internal combustion engine and simultaneously determining engine oil consumption and wear | Adrianus J. van der Griendt | 1993-11-23 |
| 5209198 | Process for simple and high speed oil change and/or flushing the engine oil distribution channels of the moving components of the crankcase in an internal combustion engine | — | 1993-05-11 |
| 5154775 | Integrated method for cleaning and flushing an internal combustion engine | — | 1992-10-13 |
| 5145033 | Sandwich adapter reusable oil filter mounted to same and process for using the same | Adrianus J. van der Griendt | 1992-09-08 |
| 5122020 | Self locking fastener | — | 1992-06-16 |
| 5094201 | Main gallery-filter connection | — | 1992-03-10 |
| 5090376 | Main gallery - filter connection | — | 1992-02-25 |
| 5074380 | Method and apparatus for changing oil in an internal combustion engine | Adrianus J. van der Griendt | 1991-12-24 |
| 5062398 | Apparatus and method for changing oil in an internal combustion engine with optional flushing | Adrianus J. van der Griendt | 1991-11-05 |
| 5044334 | Process for clean simple and high speed oil change and/or flushing of the moving components of the crankcase in an internal combustion engine | — | 1991-09-03 |
| 4976233 | Quick connect coupling adapters for facilitating simple and high speed oil change in an internal combustion engine | Andrianus J. van der Griendt | 1990-12-11 |
| 4951784 | Process and device for simple, high speed oil change and/or flushing and air purging of the moving components of the crankcase in an internal combustion engine | — | 1990-08-28 |
| 4897095 | Water entrapment device | Donald T. Benedyk | 1990-01-30 |
| 4885927 | Method and apparatus for press forming intricate metallic shapes such as spool valve elements | William R. Corkin | 1989-12-12 |
| 4884660 | Process for simple and high speed oil change and crank case flushing in an internal combustion engine | — | 1989-12-05 |