David Parker
11Patents
7h-index
7Co-inventors
59Inventor score
Filing activity: Jan 29, 1979 → Jan 14, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5583254A | Process for the production of purified terephthalic acid | Chemistry; Metallurgy | 77 | Expired |
| US5304676A | Process for the production of terephthalic acid | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5840965A | Process for the production of purified telephthalic acid | Chemistry; Metallurgy | 54 | Expired |
| USRE36008E | Process for the production of terephthalic acid | General | 42 | Expired |
| US5698734A | Process for the production of purified terephthalic acid | Chemistry; Metallurgy | 21 | Expired |
| US4205012A | Manufacture of amines from alcohols with zeolite FU-1 catalysts | Performing Operations; Transporting | 19 | Expired |
| US4191709A | Manufacture of amines from alcohols with zeolite FU-1 catalysts | Performing Operations; Transporting | 15 | Expired |
| US4238630A | Production of aromatic hydrocarbons | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5741927A | Separation process | Performing Operations; Transporting | 3 | Expired |
| US5239044A | Preparation of polyarylenesulfone from bis(chloroaryl) sulfone, dihydric phenol and difluorodiphenylsulfone | Chemistry; Metallurgy | 2 | Expired |
| US6407286B1 | Process for recovering hydrogen in producing pure terephthalic acid | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.