Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D931668 | Stackable chair frame | — | 2021-09-28 |
| 7100319 | Prismatic boresighter | — | 2006-09-05 |
| 6513275 | Magnetic lightweight collimator | — | 2003-02-04 |
| 6327806 | Optical sighting devices | — | 2001-12-11 |
| 5259556 | Pressure washer with pressure bypass | Robert C. Berfield | 1993-11-09 |
| 5086975 | Pressure washer with spring-less outlet to inlet bypass | — | 1992-02-11 |
| 5085371 | Foam creating nozzle system | — | 1992-02-04 |
| 5067654 | Pressure washer | — | 1991-11-26 |
| 4976467 | Liquid spraying nozzle | — | 1990-12-11 |