CHEVRON U.S.A. INC.
2,438Patents
1,956Active
2,438Granted
62Portfolio score
Filing activity: Mar 22, 1984 → Jan 14, 2025 · 491 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4637464A | In situ retorting of oil shale with pulsed water purge | Fixed Constructions | 317 | Expired |
| US8956581B2 | Base oil manufacturing plant | Chemistry; Metallurgy | 233 | Active |
| US6269881A | Oil recovery method for waxy crude oil using alkylaryl sulfonate surfactants derived from alpha-olefins and the alpha-olefin compositions | Emerging Cross-Sectional Technologies | 134 | Expired |
| US5951207A | Installation of a foundation pile in a subsurface soil | Fixed Constructions | 123 | Expired |
| US6554994B1 | Upflow reactor system with layered catalyst bed for hydrotreating heavy feedstocks | Performing Operations; Transporting | 98 | Expired |
| US7069149B2 | Process for interpreting faults from a fault-enhanced 3-dimensional seismic attribute volume | Physics | 98 | Expired |
| US6709644B2 | Small crystallite zeolite CHA | Chemistry; Metallurgy | 97 | Expired |
| US5558851A | Preparation of aluminosilicate zeolites | Emerging Cross-Sectional Technologies | 93 | Expired |
| US6822126B2 | Process for converting waste plastic into lubricating oils | Emerging Cross-Sectional Technologies | 92 | Expired |
| US6150577A | Method for conversion of waste plastics to lube oil | Chemistry; Metallurgy | 91 | Expired |
| US5810032A | Method and apparatus for controlling the distribution of two-phase fluids flowing through impacting pipe tees | Emerging Cross-Sectional Technologies | 89 | Expired |
| US5507345A | Methods for sub-surface fluid shut-off | Fixed Constructions | 87 | Expired |
| US6339182B1 | Separation of olefins from paraffins using ionic liquid solutions | Emerging Cross-Sectional Technologies | 82 | Expired |
| US5916529A | Multistage moving-bed hydroprocessing reactor with separate catalyst addition and withdrawal systems for each stage, and method for hydroprocessing a hydrocarbon feed stream | Performing Operations; Transporting | 74 | Expired |
| US6086749A | Catalyst and method for hydroprocessing a hydrocarbon feed stream in a reactor containing two or more catalysts | Performing Operations; Transporting | 72 | Expired |
| US7679990B2 | Methods for acquiring and processing seismic data from quasi-simultaneously activated translating energy sources | Physics | 71 | Expired |
| US6656342B2 | Graded catalyst bed for split-feed hydrocracking/hydrotreating | Performing Operations; Transporting | 70 | Expired |
| US6810332B2 | Method for computing complexity, confidence and technical maturity indices for reservoir evaluations | Physics | 68 | Expired |
| US6957192B1 | System and method for automated credit matching | Physics | 66 | Expired |
| US5958370A | Zeolite SSZ-39 | Emerging Cross-Sectional Technologies | 66 | Expired |
| US7480206B2 | Methods for earth modeling and seismic imaging using interactive and selective updating | Physics | 65 | Expired |
| US7960598B2 | Selective, integrated processing of bio-derived ester species to yield low molecular weight hydrocarbons and hydrogen for the production of biofuels | Emerging Cross-Sectional Technologies | 64 | Active |
| US6630066B2 | Hydrocracking and hydrotreating separate refinery streams | Chemistry; Metallurgy | 63 | Expired |
| US8147766B2 | Selective, integrated processing of bio-derived ester species to yield low molecular weight hydrocarbons and hydrogen for the production of biofuels | Emerging Cross-Sectional Technologies | 62 | Active |
| US7432408B2 | Integrated alkylation process using ionic liquid catalysts | Chemistry; Metallurgy | 61 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.