Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5042740 | Pressure spring for tape cassettes and tape cassettes having said spring | Klaus Schoettle, Juergen Dreyer, Willi Schuhmacher | 1991-08-27 |
| 4578455 | Process and apparatus for removing volatile constituents from polymer melts or pastes | Gunter Pipper, Josef G. Floss | 1986-03-25 |
| 4540772 | Continuous preparation of nylon from aqueous salt solution in precondensation zone having baffles | Gunter Pipper, Franz Schmidt, Rainer Theysohn, Eduard Heil, Hermann Fischer +2 more | 1985-09-10 |