James B. Sieja
9Patents
7h-index
3Co-inventors
52Inventor score
Filing activity: Mar 14, 1983 → Feb 3, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5312959A | Purification of 2-methylglutaronitrile or adiponitrile | Chemistry; Metallurgy | 18 | Expired |
| US5192399A | Purification of aminonitriles or diamines | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4508660A | Carbonylation of olefinically unsaturated nitriles and acids using a sulfone solvent | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5153351A | Removal of tetrahydroazepine (tha) from 6-aminocapronitrile by reaction with reactive methylene compounds | Chemistry; Metallurgy | 7 | Expired |
| US5133838A | Purification of 6-aminocapronitrile | Chemistry; Metallurgy | 7 | Expired |
| US4933483A | Manufacture of 5-cyanovaleric acid and its esters | Chemistry; Metallurgy | 7 | Expired |
| US5162567A | Purification of 6-aminocapronitrile | Chemistry; Metallurgy | 7 | Expired |
| US4950778A | Manufacture of 5-cyanovaleric acid and its esters using cyclic cosolvents | Chemistry; Metallurgy | 5 | Expired |
| US5892123A | Process for reproducing a mixture containing cyclododecanone and cyclododecanol | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.