Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5713700 | Method of providing subterranean cable systems | — | 1998-02-03 |
| 5324083 | Pipe connection with sleeve, insert part and retaining ring | — | 1994-06-28 |
| 5236016 | Cable-guide assembly of plastic tubes joined by webs | — | 1993-08-17 |
| 5154869 | Cable conduit with ridged inner wall | Horst Bergmann | 1992-10-13 |
| 5069254 | Conduit assembly for cabling | — | 1991-12-03 |
| 5036891 | Conduit bundle for in-ground cabling | — | 1991-08-06 |