Exxon Research and Engineering Company
4,248Patents
5Active
4,248Granted
48Portfolio score
Filing activity: Jun 13, 1958 → Feb 9, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4333735A | Process and apparatus for measuring gaseous fixed nitrogen species | Emerging Cross-Sectional Technologies | 487 | Expired |
| US4937299A | Process and catalyst for producing reactor blend polyolefins | Emerging Cross-Sectional Technologies | 459 | Expired |
| US3999607A | Recovery of hydrocarbons from coal | Emerging Cross-Sectional Technologies | 377 | Expired |
| US4530914A | Process and catalyst for producing polyethylene having a broad molecular weight distribution | Emerging Cross-Sectional Technologies | 334 | Expired |
| US4458757A | In situ shale-oil recovery process | Fixed Constructions | 288 | Expired |
| US4375662A | Method of and apparatus for enabling output power of solar panel to be maximized | Emerging Cross-Sectional Technologies | 273 | Expired |
| US5935421A | Continuous in-situ combination process for upgrading heavy oil | Chemistry; Metallurgy | 265 | Expired |
| US5072380A | Automatic vehicle recognition and customer billing system | Physics | 254 | Expired |
| US4390369A | Natural wax-containing ink jet inks | Chemistry; Metallurgy | 253 | Expired |
| US6162350A | Hydroprocessing using bulk Group VIII/Group VIB catalysts (HEN-9901) | Chemistry; Metallurgy | 246 | Expired |
| US3978185A | Melt blowing process | Emerging Cross-Sectional Technologies | 239 | Expired |
| US5121337A | Method for correcting spectral data for data due to the spectral measurement process itself and estimating unknown property and/or composition data of a sample using such method | Physics | 226 | Expired |
| US4484948A | Natural wax-containing ink jet inks | Chemistry; Metallurgy | 210 | Expired |
| US6110358A | Process for manufacturing improved process oils using extraction of hydrotreated distillates | Chemistry; Metallurgy | 208 | Expired |
| US5500890A | Point-of-sale system using multi-threaded transactions and interleaved file transfer | Electricity | 206 | Expired |
| US4540753A | Narrow MWD alpha-olefin copolymers | Emerging Cross-Sectional Technologies | 205 | Expired |
| US4943672A | Process for the hydroisomerization of Fischer-Tropsch wax to produce lubricating oil (OP-3403) | Chemistry; Metallurgy | 194 | Expired |
| US5721910A | Relational database system containing a multidimensional hierachical model of interrelated subject categories with recognition capabilities | Emerging Cross-Sectional Technologies | 172 | Expired |
| US4110987A | Thermal energy storage by means of reversible heat pumping utilizing industrial waste heat | Mechanical Engineering; Lighting; Heating | 171 | Expired |
| US5886056A | Rapid injection process and apparatus for producing synthesis gas (law 560) | Chemistry; Metallurgy | 170 | Expired |
| US4112051A | Process and amine-solvent absorbent for removing acidic gases from gaseous mixtures | Emerging Cross-Sectional Technologies | 168 | Expired |
| US4935474A | Process and catalyst for producing polyethylene having a broad molecular weight distribution | Emerging Cross-Sectional Technologies | 167 | Expired |
| US4112052A | Process for removing carbon dioxide containing acidic gases from gaseous mixtures using aqueous amine scrubbing solutions | Emerging Cross-Sectional Technologies | 165 | Expired |
| US4497974A | Realization of a thin film solar cell with a detached reflector | Emerging Cross-Sectional Technologies | 153 | Expired |
| US6165949A | Premium wear resistant lubricant | Chemistry; Metallurgy | 148 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.