Martyn Vincent Twigg
46Patents
17h-index
32Co-inventors
81Inventor score
Filing activity: Nov 17, 1980 → May 23, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6753294B1 | Catalytic wall-flow filter | Emerging Cross-Sectional Technologies | 102 | Expired |
| US7264785B2 | Selective catalytic reduction | Emerging Cross-Sectional Technologies | 99 | Expired |
| US6294141A | Emission control | Emerging Cross-Sectional Technologies | 80 | Expired |
| US4810685A | Foam catalysts, method of manufacture and method of using | Emerging Cross-Sectional Technologies | 70 | Expired |
| US4329530A | Hydrogenation catalyst and process for the selective hydrogenation of highly unsaturated hydrocarbons | Chemistry; Metallurgy | 60 | Expired |
| US4863712A | Catalysts for reforming hydrocarbon feedstocks | Emerging Cross-Sectional Technologies | 59 | Expired |
| US7097817B2 | Method for treating soot-containing exhaust | Emerging Cross-Sectional Technologies | 55 | Expired |
| US6863874B1 | Process and apparatus for treating combustion exhaust gas | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5030440A | Hydrogen production | Chemistry; Metallurgy | 48 | Expired |
| US6696031B1 | Treatment of exhaust gas | Emerging Cross-Sectional Technologies | 41 | Expired |
| US7861516B2 | Methods of controlling reductant addition | Emerging Cross-Sectional Technologies | 40 | Active |
| US6877313B1 | Particulate control | Emerging Cross-Sectional Technologies | 39 | Expired |
| US7178331B2 | Exhaust system for lean burn IC engines | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4460704A | Catalyst for the production of hydrogen | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4581157A | Catalyst and steam reforming process | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6775972B2 | Purification of exhaust gases | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US7998424B2 | Exhaust system comprising zoned oxidation catalyst | Emerging Cross-Sectional Technologies | 18 | Active |
| US4732688A | Effluent treatment | Chemistry; Metallurgy | 16 | Expired |
| US6889498B1 | Emissions control | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US6651424B1 | Catalyst systems | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7485270B2 | Process for treating compression ignition engine exhaust gas | Emerging Cross-Sectional Technologies | 12 | Expired |
| US8006485B2 | Compression ignition engine and exhaust system therefor | Emerging Cross-Sectional Technologies | 12 | Expired |
| US8220251B2 | Exhaust system comprising exotherm-generating catalyst | Emerging Cross-Sectional Technologies | 12 | Active |
| US6857265B2 | Diesel exhaust system including NOx-trap | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7111453B2 | Emissions control | Mechanical Engineering; Lighting; Heating | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.