G. Paull Torrence
53Patents
17h-index
58Co-inventors
87Inventor score
Filing activity: Jun 3, 1986 → Jun 12, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5144068A | Methanol carbonylation process | Chemistry; Metallurgy | 275 | Expired |
| US5001259A | Methanol carbonylation process | Chemistry; Metallurgy | 254 | Expired |
| US6657078B2 | Low energy carbonylation process | Chemistry; Metallurgy | 240 | Expired |
| US5026908A | Methanol carbonylation process | Chemistry; Metallurgy | 227 | Expired |
| US6143930A | Removal of permanganate reducing compounds and alkyl iodides from a carbonylation process stream | Chemistry; Metallurgy | 195 | Expired |
| US7005541B2 | Low water methanol carbonylation process for high acetic acid production and for water balance control | Chemistry; Metallurgy | 173 | Expired |
| US4994608A | Addition of hydrogen to carbon monoxide feed gas in producing acetic acid by carbonylation of methanol | Chemistry; Metallurgy | 171 | Expired |
| US6627770B1 | Method and apparatus for sequesting entrained and volatile catalyst species in a carbonylation process | Chemistry; Metallurgy | 162 | Expired |
| US6339171B1 | Removal or reduction of permanganate reducing compounds and alkyl iodides from a carbonylation process stream | Chemistry; Metallurgy | 66 | Expired |
| US4894477A | Process for regenerating a carbonylation catalyst solution to remove corrosion metals and carbonylation of methanol to acetic acid | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5300685A | Removal of halide impurities from organic liquids | Chemistry; Metallurgy | 25 | Expired |
| US6225498A | Method of removing organic iodides from organic media | Performing Operations; Transporting | 24 | Expired |
| US6303813A | Rhodium/inorganic iodide catalyst system for methanol carbonylation process with improved impurity profile | Chemistry; Metallurgy | 24 | Expired |
| US5783731A | Removal of carbonyl impurities from a carbonylation process stream | Chemistry; Metallurgy | 23 | Expired |
| US5206434A | Purification process for methyl acetate | Chemistry; Metallurgy | 20 | Expired |
| US6211405A | Addition of iridium to the rhodium/inorganic iodide catalyst system | Chemistry; Metallurgy | 18 | Expired |
| US5466874A | Polymeric carbonylation catalyst system | Performing Operations; Transporting | 17 | Expired |
| US6667418B2 | Oxidation treatment of a recycle stream in production of acetic acid by methanol carbonylation | Chemistry; Metallurgy | 13 | Expired |
| US8697908B2 | Removal of amine compounds from carbonylation process stream containing corrosion metal contaminants | Chemistry; Metallurgy | 13 | Active |
| US6677480B2 | Process control in production of acetic acid via use of heavy phase density measurement | Chemistry; Metallurgy | 11 | Expired |
| US5155265A | Purification of acetic acid with ozone followed by treatment with activated carbon and/or an ion-exchange resin | Chemistry; Metallurgy | 9 | Expired |
| US5202481A | Purification of acetic acid produced by the low water carbonylation of methanol by treatment with ozone | Chemistry; Metallurgy | 8 | Expired |
| US5155266A | Purification of acetic acid with ozone in the presence of an oxidation catalyst | Chemistry; Metallurgy | 8 | Expired |
| US5281359A | Polymeric carbonylation catalyst system | Performing Operations; Transporting | 7 | Expired |
| US8017802B2 | Control of impurities in reaction product of rhodium-catalyzed methanol carbonylation | Chemistry; Metallurgy | 6 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.