David Cresswell
5Patents
3h-index
4Co-inventors
46Inventor score
Filing activity: Mar 22, 1988 → Aug 26, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4849554A | Production of tetrafluoroethylene and hexafluoropropylene | Chemistry; Metallurgy | 29 | Expired |
| US5324904A | Reactors for effecting chemical processes | Performing Operations; Transporting | 18 | Expired |
| US7647860B2 | Diaphragm and a diaphragm pump | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US5122497A | Catalyst for ammonia oxidation | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5041276A | Ammonia oxidation | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.