Gerhard P. Nowack
57Patents
14h-index
21Co-inventors
84Inventor score
Filing activity: May 5, 1975 → Jun 5, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4151072A | Reclaiming used lubricating oils | Chemistry; Metallurgy | 64 | Expired |
| US4404124A | Selective hydrogenation catalyst | Emerging Cross-Sectional Technologies | 63 | Expired |
| US4484015A | Selective hydrogenation | Emerging Cross-Sectional Technologies | 50 | Expired |
| US4593148A | Process for removal of arsine impurities from gases containing arsine and hydrogen sulfide | Chemistry; Metallurgy | 40 | Expired |
| US5360632A | Reduced leaching of arsenic and/or mercury from solid wastes | Human Necessities | 33 | Expired |
| US4551230A | Demetallization of hydrocarbon feed streams with nickel arsenide | Chemistry; Metallurgy | 32 | Expired |
| US5085844A | Sorption of trialkyl arsines | Chemistry; Metallurgy | 29 | Expired |
| US5104570A | Method for preparing olefin complexing reagents and use thereof | Chemistry; Metallurgy | 23 | Expired |
| US4593146A | Isomerization process and catalyst therefor | Chemistry; Metallurgy | 23 | Expired |
| US5191153A | Method for preparing olefin complexing reagents and use thereof | Chemistry; Metallurgy | 22 | Expired |
| US5064626A | Trialkyl arsine sorbents | Performing Operations; Transporting | 22 | Expired |
| US5523512A | Copper (I) carboxylate-containing olefin complexing reagents | Performing Operations; Transporting | 20 | Expired |
| US5259986A | Copper (I) carboxylate-containing olefin complexing reagents | Performing Operations; Transporting | 18 | Expired |
| US4933159A | Sorption of trialkyl arsines | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4421638A | Demetallization of heavy oils | Chemistry; Metallurgy | 14 | Expired |
| US4247389A | De-ashing lubricating oils | Chemistry; Metallurgy | 13 | Expired |
| US4309311A | Ammonia synthesis with catalyst derived by heating on a support a salt selected from alkali metal, alkaline earth metal, iron and cobalt hexacyanocobaltates and hexacyanoruthenates | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4344841A | Method of removing contaminant from feedstock streams | Chemistry; Metallurgy | 12 | Expired |
| US4140493A | Hydrocarbon steam reforming process | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4011058A | Production of substitute natural gas from gasification of coal char | Chemistry; Metallurgy | 11 | Expired |
| US4314901A | Catalytic hydrodesulfurization of an organic sulfur compound contained in gasoline | Chemistry; Metallurgy | 10 | Expired |
| US4201875A | Catalyst and process for producing hydroperoxides | Chemistry; Metallurgy | 10 | Expired |
| US4503249A | Hydrogenation catalysts | Performing Operations; Transporting | 9 | Expired |
| US4327234A | Hydrogenation process using supported nickel catalyst | Chemistry; Metallurgy | 9 | Expired |
| US5024683A | Sorption of trialkyl arsines | Emerging Cross-Sectional Technologies | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.