Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6634057 | Door holder assembly | — | 2003-10-21 |
| 5700044 | Door latch operator | — | 1997-12-23 |
| 5639132 | Door latch operating mechanism | — | 1997-06-17 |
| 5495639 | Door closing apparatus | — | 1996-03-05 |
| 5157806 | Door closing piston-cylinder assembly | — | 1992-10-27 |
| 5029913 | Door latch | — | 1991-07-09 |
| 4864835 | Door latch mechanism | — | 1989-09-12 |
| D299615 | Door handle | — | 1989-01-31 |
| 4576405 | Door latch mechanism | — | 1986-03-18 |
| 4552393 | Door latch mechanism | — | 1985-11-12 |
| 4520639 | Double dead bolt door lock | — | 1985-06-04 |
| 4432576 | Door latch | — | 1984-02-21 |