Petroline Wireline Services Limited
Patent Applications and Registrations
Patent applications and USPTO patent grants for Petroline Wireline Services Limited.The latest application filed is for "self-piloting check valve".
- Petroline Wireline Services Limited - Scotland GB
- Petroline Wireline Services Limited - GB GB
- Petroline Wireline Services Limited - Aberdeen GB6
- Petroline Wireline Services Ltd. - GB6 GB6
- Petroline Wireline Services, Ltd. - Aberdeen GB6
- Petroline Wireline Services Limited - GB6 GB6
| Patent | Date |
|---|---|
| Self-piloting check valve Grant 5,636,661 - Moyes June 10, 1 | 1997-06-10 |
| Lock mandrel for downhole assemblies Grant 5,409,059 - McHardy April 25, 1 | 1995-04-25 |
| Upstroke jar Grant 5,267,613 - Zwart , et al. December 7, 1 | 1993-12-07 |
| Anti blow-out control apparatus Grant 5,156,209 - McHardy October 20, 1 | 1992-10-20 |
| Quick-locking connector Grant 5,052,849 - Zwart October 1, 1 | 1991-10-01 |
| Downhole lock assembly Grant 4,883,121 - Zwart November 28, 1 | 1989-11-28 |
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