Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850601 | Seal | Hans-Peter Maier | 1989-07-25 |
| 4836583 | Pipe connection for instruments or machines | Hans-Peter Maier | 1989-06-06 |
| 4717179 | Pipe union for end to end pipes with deformable clamping disks surrounding a seal | Rolf Haberstock, Heinrich Trissler, Hans-Peter Maier | 1988-01-05 |
| 4667988 | Clamping element | Hans-Peter Maier | 1987-05-26 |