Vetco Gray, LLC
452Patents
317Active
452Granted
56Portfolio score
Filing activity: Dec 31, 1980 → Apr 5, 2019 · 144 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4791997A | Pipe handling apparatus and method | Fixed Constructions | 146 | Expired |
| US5095991A | Device for inserting tubular members together | Fixed Constructions | 116 | Expired |
| US4712620A | Upper marine riser package | Fixed Constructions | 96 | Expired |
| US4719971A | Metal-to-metal/elastomeric pack-off assembly for subsea wellhead systems | Fixed Constructions | 83 | Expired |
| US6904818B2 | Internal riser inspection device | Physics | 64 | Expired |
| US4708376A | Hydraulic collet-type connector | Emerging Cross-Sectional Technologies | 57 | Expired |
| US5503230A | Concentric tubing hanger | Fixed Constructions | 56 | Expired |
| US4817724A | Diverter system test tool and method | Fixed Constructions | 53 | Expired |
| US7201229B2 | Tree mounted well flow interface device | Fixed Constructions | 50 | Expired |
| US4703774A | Subsea safety check valve system | Emerging Cross-Sectional Technologies | 46 | Expired |
| US4777800A | Static head charged hydraulic accumulator | Emerging Cross-Sectional Technologies | 45 | Expired |
| US4771832A | Wellhead with eccentric casing seal ring | Fixed Constructions | 41 | Expired |
| US7975768B2 | Riser joint coupling | Emerging Cross-Sectional Technologies | 41 | Active |
| US7328741B2 | System for sensing riser motion | Performing Operations; Transporting | 40 | Expired |
| US6968902B2 | Drilling and producing deep water subsea wells | Chemistry; Metallurgy | 40 | Expired |
| US8322441B2 | Open water recoverable drilling protector | Fixed Constructions | 39 | Active |
| US4709725A | Metal-to-metal seal structure | Emerging Cross-Sectional Technologies | 36 | Expired |
| US8474537B2 | High capacity wellhead connector having a single annular piston | Fixed Constructions | 36 | Active |
| US4714111A | Weight/pressure set pack-off for subsea wellhead systems | Fixed Constructions | 35 | Expired |
| US4810010A | Composite tubing connector assembly | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| US7073591B2 | Casing hanger annulus monitoring system | Fixed Constructions | 34 | Expired |
| US4771805A | Gate valve | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4856594A | Wellhead connector locking device | Fixed Constructions | 34 | Expired |
| US7740074B2 | Tree mounted well flow interface device | Chemistry; Metallurgy | 34 | Active |
| US4674576A | Casing hanger running tool | Fixed Constructions | 34 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.