Shell Offshore Inc.
68Patents
0Active
68Granted
38Portfolio score
Filing activity: Jul 14, 1983 → Jul 20, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4526232A | Method of replacing a corroded well conductor in an offshore platform | Fixed Constructions | 115 | Expired |
| US5006845A | Gas kick detector | Fixed Constructions | 82 | Expired |
| US5184686A | Method for offshore drilling utilizing a two-riser system | Fixed Constructions | 78 | Expired |
| US6276455A | Subsea gas separation system and method for offshore drilling | Fixed Constructions | 66 | Expired |
| US6186239A | Casing annulus remediation system | Fixed Constructions | 57 | Expired |
| US6216799A | Subsea pumping system and method for deepwater drilling | Fixed Constructions | 56 | Expired |
| US4557332A | Drilling riser locking apparatus and method | Emerging Cross-Sectional Technologies | 53 | Expired |
| US4682913A | Hydraulic stab connector | Fixed Constructions | 43 | Expired |
| US4720214A | Mudmat design | Fixed Constructions | 36 | Expired |
| US4649704A | Subsea power fluid accumulator | Performing Operations; Transporting | 33 | Expired |
| US4657439A | Buoyant member riser tensioner method and apparatus | Fixed Constructions | 33 | Expired |
| US4830541A | Suction-type ocean-floor wellhead | Fixed Constructions | 31 | Expired |
| US5168933A | Combination hydraulic tubing hanger and chemical injection sub | Fixed Constructions | 29 | Expired |
| US4769773A | Vessel wave heading control apparatus | Physics | 29 | Expired |
| US6263981A | Deepwater drill string shut-off valve system and method for controlling mud circulation | Fixed Constructions | 28 | Expired |
| USD384574S | Grating clip for securing fiberglass deck elements to an offshore platform | General | 28 | Expired |
| US4674915A | Manipulator apparatus for gripping submerged objects | Performing Operations; Transporting | 28 | Expired |
| US5159891A | Adjustable boat mooring system for a flexibly-supported tension leg platform | Performing Operations; Transporting | 27 | Expired |
| US5197716A | Seismic cable deployment apparatus | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US4487228A | Weather-resistant and self-draining thread protector | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5273376A | Back-up connector release tool | Performing Operations; Transporting | 25 | Expired |
| US4972907A | Method of conducting well operations from a moveable floating platform | Fixed Constructions | 24 | Expired |
| US4666340A | Offshore platform with removable modules | Fixed Constructions | 23 | Expired |
| US4690216A | Formation fluid sampler | Fixed Constructions | 22 | Expired |
| US4688640A | Abandoning offshore well | Fixed Constructions | 22 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.