Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10375503 | Apparatus and method for driving an array of loudspeakers with drive signals | Heinrich Löllmann, Walter Kellermann, Peter Grosche, Yue Lang | 2019-08-06 |
| 10284993 | Apparatus and method for driving an array of loudspeakers | Heinrich Löllmann, Walter Kellermann, Karim Helwani, Peter Grosche, Yue Lang | 2019-05-07 |
| 5031965 | Dress wheel simulator | — | 1991-07-16 |
| 4991789 | Retractable carpet system for vehicular quarters | — | 1991-02-12 |
| 4913979 | Wheel trim ring | — | 1990-04-03 |
| 4825524 | Method of making a wheel trim ring | — | 1989-05-02 |