Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9587499 | Inner ring of a fluid flow machine and stator vane array | Lothar Albers, Georg Zotz, Rudolf Pilzweger | 2017-03-07 |
| 8968165 | Structure for securing weight plates | — | 2015-03-03 |
| 6199915 | Connector element for tubing or hoses | — | 2001-03-13 |
| 5108354 | Barbell support | — | 1992-04-28 |
| 4955603 | Barbell weight lock | — | 1990-09-11 |
| 4828570 | Tanning agent and a process for its preparation | Ulrich Riegel, Fritz Engelhardt, Kuno Reh, Helmut Croon, Werner Lotz | 1989-05-09 |
| 4822372 | Processing for tanning leather | Frank Forster, Karlfried Keller, Werner Lotz | 1989-04-18 |
| 4810252 | Process for tanning leather | Werner Lotz, Karlfried Keller | 1989-03-07 |
| 4426077 | Muscle developing exercise device | — | 1984-01-17 |