David Duch
9Patents
4h-index
7Co-inventors
50Inventor score
Filing activity: Jan 23, 1981 → Jul 9, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4512992A | Treatment with dialkoxy pyridopyrimidine compounds | Chemistry; Metallurgy | 18 | Expired |
| US4897395A | Treatment with dialkoxy pyridopyrimidines | Human Necessities | 16 | Expired |
| US4372957A | Treatment with dialkoxy pyridopyrimidines | Human Necessities | 6 | Expired |
| US8136350B2 | Catalytic muffler having crossover passageway for secondary air | Mechanical Engineering; Lighting; Heating | 5 | Active |
| US6579877B2 | Combination of benzoquinazoline antifolates and protecting agents | Human Necessities | 2 | Expired |
| US6358952B1 | Combination of benzoquinazoline antifolates and protecting agents | Human Necessities | 2 | Expired |
| US10744393B2 | Goaltender device with wrist band and cord for retractable support of a removed goalie glove | Human Necessities | 1 | Active |
| US6855712B2 | Combination of benzoquinazoline antifolates and protecting agents | Human Necessities | 1 | Expired |
| US4661490A | Treatment with dialkoxy pyridopyrimidines | Human Necessities | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.