SHELL OIL COMPNY
7,673Patents
1,924Active
7,673Granted
52Portfolio score
Filing activity: Aug 17, 1962 → Jun 22, 2020 · 768 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5366012A | Method of completing an uncased section of a borehole | Fixed Constructions | 575 | Expired |
| US4886118A | Conductively heating a subterranean oil shale to create permeability and subsequently produce oil | Fixed Constructions | 437 | Expired |
| US6056057A | Heater well method and apparatus | Fixed Constructions | 371 | Expired |
| US5255742A | Heat injection process | Emerging Cross-Sectional Technologies | 368 | Expired |
| US4570715A | Formation-tailored method and apparatus for uniformly heating long subterranean intervals at high temperature | Fixed Constructions | 367 | Expired |
| US4984594A | Vacuum method for removing soil contamination utilizing surface electrical heating | Performing Operations; Transporting | 366 | Expired |
| US5046559A | Method and apparatus for producing hydrocarbon bearing deposits in formations having shale layers | Fixed Constructions | 360 | Expired |
| US6023554A | Electrical heater | Performing Operations; Transporting | 360 | Expired |
| US5348095A | Method of creating a wellbore in an underground formation | Fixed Constructions | 356 | Expired |
| US6079499A | Heater well method and apparatus | Fixed Constructions | 355 | Expired |
| US5498960A | NMR logging of natural gas in reservoirs | Physics | 354 | Expired |
| US5862858A | Flameless combustor | Fixed Constructions | 350 | Expired |
| US4728892A | NMR imaging of materials | Physics | 350 | Expired |
| US5060287A | Heater utilizing copper-nickel alloy core | Fixed Constructions | 348 | Expired |
| US5899269A | Flameless combustor | Emerging Cross-Sectional Technologies | 346 | Expired |
| US5297626A | Oil recovery process | Emerging Cross-Sectional Technologies | 345 | Expired |
| US4640352A | In-situ steam drive oil recovery process | Fixed Constructions | 343 | Expired |
| US4626665A | Metal oversheathed electrical resistance heater | Chemistry; Metallurgy | 341 | Expired |
| US5318116A | Vacuum method for removing soil contaminants utilizing thermal conduction heating | Performing Operations; Transporting | 340 | Expired |
| US5392854A | Oil recovery process | Emerging Cross-Sectional Technologies | 340 | Expired |
| US5065818A | Subterranean heaters | Fixed Constructions | 339 | Expired |
| US5190405A | Vacuum method for removing soil contaminants utilizing thermal conduction heating | Performing Operations; Transporting | 336 | Expired |
| US7121342B2 | Thermal processes for subsurface formations | Fixed Constructions | 333 | Expired |
| US6019172A | Flameless combustor | Emerging Cross-Sectional Technologies | 332 | Expired |
| US7011154B2 | In situ recovery from a kerogen and liquid hydrocarbon containing formation | Emerging Cross-Sectional Technologies | 330 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.