Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11649628 | Area separation firewall system | — | 2023-05-16 |
| 6698432 | Movable device against snoring | — | 2004-03-02 |
| 6209544 | Turning restraining device | — | 2001-04-03 |
| 4722152 | Method and apparatus for grinding the sliding surface of skates | Henry Bergstedth | 1988-02-02 |