Issued Patents All Time
Showing 51–63 of 63 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4458888 | Dampening device | Hubert Pletsch | 1984-07-10 |
| 4433361 | Cover with electrically insulated current conduction | Rudolf Klaschka | 1984-02-21 |
| 4361349 | Ring-packed pipe spigot-and-socket connection | Hansjorg Lauer | 1982-11-30 |
| 4342464 | Gasket for a socket-spigot connection | Hansjorg Lauer | 1982-08-03 |
| 4336009 | Molding tool | — | 1982-06-22 |
| 4326642 | Tubular case sealing means and method of manufacturing same | — | 1982-04-27 |
| 4304415 | Packing ring for ribbed conduits | Hans J. Kunze | 1981-12-08 |
| 4296186 | Two part pressure relief valve | — | 1981-10-20 |
| 4237593 | Method of making a two-part pressure relief valve | — | 1980-12-09 |
| 4235257 | Elastic seating element for a cutoff device | — | 1980-11-25 |
| 4199801 | Coil capacitor | — | 1980-04-22 |
| 4191390 | Gasket ring with locking rings | Dieter Roth | 1980-03-04 |
| 4188040 | Sealing ring | Hans J. Kunze | 1980-02-12 |