Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D319772 | Sliding patio door handle | — | 1991-09-10 |
| D305724 | Combined handle and rosette | — | 1990-01-30 |
| D303490 | Handle stem | — | 1989-09-19 |
| D303075 | Combined handle and escutcheon | — | 1989-08-29 |
| D302651 | Combined check rail lock and keeper | — | 1989-08-08 |
| 4813725 | Concealed check rail lock and keeper | — | 1989-03-21 |
| 4801164 | Check rail lock | — | 1989-01-31 |
| D297505 | Sash lift | — | 1988-09-06 |
| 4736972 | Check rail lock | — | 1988-04-12 |
| 4202565 | Retractable overhead guard | — | 1980-05-13 |