Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9371953 | Base for a generator | Gordon Spratt | 2016-06-21 |
| 9234401 | Nested cyclinder compact blowout preventer | — | 2016-01-12 |
| D721827 | Roof panel | Gordon Spratt, Peter Raby | 2015-01-27 |
| 5083582 | Valve with removable insert | — | 1992-01-28 |
| 5074717 | Clamped body replacement tool | Rodney C. Hope, Stephen Hatton | 1991-12-24 |
| 4883293 | Clamp connector | — | 1989-11-28 |
| 4874008 | Valve mounting and block manifold | — | 1989-10-17 |
| 4583746 | Method and apparatus for sealing between two concentric members | — | 1986-04-22 |
| 4550782 | Method and apparatus for independent support of well pipe hangers | — | 1985-11-05 |
| 4517188 | 1-Pyrimidinyloxy-3-hetaryl-alkylamino-2-propanols | William L. Matier, Herbert R. Roth | 1985-05-14 |
| 4497592 | Self-levelling underwater structure | — | 1985-02-05 |
| 4490073 | Multiple flowline connector | — | 1984-12-25 |
| 4472081 | Apparatus for connecting underwater flowlines | — | 1984-09-18 |
| 4472080 | Method for installing and connecting underwater flowlines | — | 1984-09-18 |
| 4449583 | Well devices with annulus check valve and hydraulic by-pass | — | 1984-05-22 |
| 4432670 | Combination connector and flex joint for underwater tension elements | — | 1984-02-21 |
| 4427072 | Method and apparatus for deep underwater well drilling and completion | — | 1984-01-24 |
| 4422618 | Remotely operated valve | — | 1983-12-27 |
| 4405261 | Subsea template levelling system and method | — | 1983-09-20 |
| 4399286 | Antiarrhythmic phenethylpiperidine compounds | — | 1983-08-16 |
| 4340117 | Underwater well installations and handling string joint therefor | — | 1982-07-20 |
| 4333531 | Method and apparatus for multiple well completion | — | 1982-06-08 |
| 4321386 | Quaternary piperidinium halides | — | 1982-03-23 |
| 4319773 | Fastener and devices in which load supporting members are secured thereby | — | 1982-03-16 |
| 4317587 | Split fastening ring and assemblies employing same | — | 1982-03-02 |