Weatherford Oil Tool GmbH
Patent Applications and Registrations
Patent applications and USPTO patent grants for Weatherford Oil Tool GmbH.The latest application filed is for "apparatus for testing connections between pieces of piping for impermeability to gases".
- Weatherford Oil Tool GmbH - Langenhagen DE
- Weatherford Oil Tool G.m.b.H. - Krahenwinkel DT
| Patent | Date |
|---|---|
| Apparatus for testing connections between pieces of piping for impermeability to gases Grant 4,753,108 - Jansch June 28, 1 | 1988-06-28 |
| Machine for making up and breaking out pipe joints Grant 4,739,681 - Pietras April 26, 1 | 1988-04-26 |
| Apparatus for screwing pipes together Grant 4,492,134 - Reinholdt , et al. January 8, 1 | 1985-01-08 |
| Device for the rotation of a pipe Grant 3,875,826 - Dreyfuss , et al. April 8, 1 | 1975-04-08 |
| SEC | 0001794901 | Weatherford Oil Tool GmbH of GERMANY |
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