Dennis Hearn
40Patents
21h-index
11Co-inventors
78Inventor score
Filing activity: Oct 20, 1982 → Jul 18, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6169218A | Selective hydrogenation of highly unsaturated compounds in hydrocarbon streams | Emerging Cross-Sectional Technologies | 83 | Expired |
| US5597476A | Gasoline desulfurization process | Emerging Cross-Sectional Technologies | 76 | Expired |
| US5877363A | Process for concurrent selective hydrogenation of acetylenes and 1,2 butadine in hydrocarbon streams | Emerging Cross-Sectional Technologies | 74 | Expired |
| US5055627A | Process for the preparation of cumene | Emerging Cross-Sectional Technologies | 72 | Expired |
| US5266546A | Catalytic distillation machine | Emerging Cross-Sectional Technologies | 62 | Expired |
| US4950834A | Alkylation of organic aromatic compounds in a dual bed system | Emerging Cross-Sectional Technologies | 57 | Expired |
| US5003124A | Oligomerization process | Performing Operations; Transporting | 57 | Expired |
| US5243115A | Alkylation of organic aromatic compounds | Emerging Cross-Sectional Technologies | 55 | Expired |
| US5476978A | Process for the preparation of ethyl benzene | Emerging Cross-Sectional Technologies | 52 | Expired |
| US5961815A | Hydroconversion process | Chemistry; Metallurgy | 51 | Expired |
| US5595634A | Process for selective hydrogenation of highly unsaturated compounds and isomerization of olefins in hydrocarbon streams | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4447668A | Process for producing high purity isoolefins and dimers thereof by dissociation of ethers | Emerging Cross-Sectional Technologies | 44 | Expired |
| US5431890A | Catalytic distillation structure | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5684213A | Method for the preparation of dialkyl ethers | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5510568A | Process for the removal of mercaptans and hydrogen sulfide from hydrocarbon streams | Chemistry; Metallurgy | 35 | Expired |
| US5779883A | Hydrodesulfurization process utilizing a distillation column realtor | Performing Operations; Transporting | 31 | Expired |
| US4950803A | Etherification process | Performing Operations; Transporting | 30 | Expired |
| US5773670A | Hydrogenation of unsaturated cyclic compounds | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5807477A | Process for the treatment of light naphtha hydrocarbon streams | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5176883A | Alkylation of organic aromatic compounds | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5628880A | Etherification--hydrogenation process | Emerging Cross-Sectional Technologies | 21 | Expired |
| US5856602A | Selective hydrogenation of aromatics contained in hydrocarbon streams | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5122236A | Method for removal of dimethyl ether and methanol from C.sub.4 hydrocarbon streams | Chemistry; Metallurgy | 16 | Expired |
| US5523062A | Catalytic distillation distribution structure | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5190730A | Reactor for exothermic reactions | Performing Operations; Transporting | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.