Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5422063 | Process and a device for cooling a pipe during its manufacture by extrusion | — | 1995-06-06 |
| 5415242 | Process and device for making an electrically conducting connection between cable ducts | — | 1995-05-16 |
| 5344382 | Multi-chamber centrifuge for degassing or gassing of liquids | — | 1994-09-06 |
| 5256250 | Thin film evaporator | — | 1993-10-26 |
| 5212349 | Cable duct with detector wire | — | 1993-05-18 |
| 4779682 | Method for the grit-free withdrawal of water from a well and also a device suitable therefor | — | 1988-10-25 |
| 4247355 | Apparatus for manufacture of laminated glazing | Hans-Georg Friedrich, Friedrich Halberschmidt | 1981-01-27 |
| 4232080 | Safety window comprising self-healing polymeric layer | Roger Orain, Hans Heuser, Hans Ohlenforst | 1980-11-04 |