Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9523437 | Electromagnetic actuator | Gerhardt Ohlendorf, Stefan Solterbeck, Hergen Ruetemann, Armin Beck, Wolfram Maiwald +2 more | 2016-12-20 |
| 4960137 | Method and apparatus for forming curved handrails | William G. Grimm | 1990-10-02 |
| 4421302 | Prefabricated adjustable handrail assembly | William G. Grimm | 1983-12-20 |
| 4381160 | Post support bracket assembly | William G. Grimm | 1983-04-26 |