Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4936197 | Dynamic seal construction | — | 1990-06-26 |
| 4873616 | Power supply for arc lamps | William Fredrick, Peter Baldwin | 1989-10-10 |
| 4873617 | Power supply for arc lamps | William Fredrick, Peter Baldwain | 1989-10-10 |
| 4873618 | Power supply for D.C. arc lamps | William Fredrick, Peter Baldwin | 1989-10-10 |
| RE31171 | Hydraulic piston rod seal | — | 1983-03-08 |
| 4239244 | Hydraulic piston rod seal | — | 1980-12-16 |
| 4191202 | Polarity control valve | — | 1980-03-04 |