Sigel; Alwin
Patent Applications and Registrations
Patent applications and USPTO patent grants for Sigel; Alwin.The latest application filed is for "robot for the repair of sewer pipes".
- Sigel; Alwin - Martin AU
- Sigel; Alwin - Nussberg CH
- Sigel; Alwin - Schlatt CH
- Sigel; Alwin - 8418 Schlatt CH
| Patent | Date |
|---|---|
| Robot for the repair of sewer pipes Grant 6,101,951 - Sigel August 15, 2 | 2000-08-15 |
| Device and method for repairing building branch lines in inacessible sewer mains Grant 5,674,030 - Sigel October 7, 1 | 1997-10-07 |
| Flexible tube for the packaging of pasty products Grant 5,409,143 - Sigel , et al. April 25, 1 | 1995-04-25 |
| Remote-controlled insertion of sheathing in inaccessible manifolds and junctions Grant 5,285,817 - Sigel February 15, 1 | 1994-02-15 |
| Method and means for remote-controlled sheathing installation when renovating pipelines Grant 5,054,187 - Sigel October 8, 1 | 1991-10-08 |
| Machine for repairing and sealing conduits Grant 4,785,512 - Sigel November 22, 1 | 1988-11-22 |
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