Parmann; Gunnar
Patent Applications and Registrations
Patent applications and USPTO patent grants for Parmann; Gunnar.The latest application filed is for "method of making a marine seismic streamer".
- Parmann; Gunnar - Alvoen NO
- Parmann; Gunnar - Allv y NO
- Parmann; Gunnar - Alvoy NO
- Parmann; Gunnar - Bergen NO
- Parmann; Gunnar - Mathopen NO
- Parmann; Gunnar - 5070 Mathopen NO
| Patent | Date |
|---|---|
| Method of making a marine seismic streamer Grant 6,477,111 - Lunde , et al. November 5, 2 | 2002-11-05 |
| Mould and sealing ring Grant 4,818,209 - Petersson , et al. April 4, 1 | 1989-04-04 |
| Reinforced sealing rings for pipe joints Grant 4,368,894 - Parmann January 18, 1 | 1983-01-18 |
| System for mounting a forming element on a mandrel Grant 4,336,014 - Parmann June 22, 1 | 1982-06-22 |
| Production of socket ends in thermoplastic pipes Grant 4,299,412 - Parmann November 10, 1 | 1981-11-10 |
| Combined mould element and sealing ring Grant 4,030,872 - Parmann June 21, 1 | 1977-06-21 |
| Method and apparatus for bending thermoplastic pipes Grant 3,965,715 - Parmann June 29, 1 | 1976-06-29 |
| Apparatus for bending thermoplastic pipes Grant 3,884,612 - Parmann May 20, 1 | 1975-05-20 |
| Apparatus For Producing Radially-expanded Socket Ends On Thermoplastic Pipe Lengths Grant 3,776,682 - Parmann December 4, 1 | 1973-12-04 |
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