Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4738186 | Diaphragm for a servomotor | Louis P. Rossigno, Robert F. Shellhamer | 1988-04-19 |
| 4729285 | Control valve for a vacuum brake booster | — | 1988-03-08 |
| 4487105 | Four position control valve for a pneumatically operated servomotor | — | 1984-12-11 |
| 4281585 | Hydraulic brake booster and valve member | Dean E. Runkle, Louis S. Tang | 1981-08-04 |
| 4237770 | Poppet member for a control valve | George D. Pope, Richard F. Riel, Donald A. Kobb, Charley T. Kelley, David J. Lawrence +2 more | 1980-12-09 |