Charles Campbell
8Patents
6h-index
19Co-inventors
60Inventor score
Filing activity: Feb 9, 1978 → Sep 23, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4959074A | Method of hydrophilic coating of plastics | Emerging Cross-Sectional Technologies | 68 | Expired |
| US5037677A | Method of interlaminar grafting of coatings | Chemistry; Metallurgy | 63 | Expired |
| US4801475A | Method of hydrophilic coating of plastics | Chemistry; Metallurgy | 61 | Expired |
| US5023114A | Method of hydrophilic coating of plastics | Chemistry; Metallurgy | 32 | Expired |
| US4163655A | Method of manufacture of molds for resin ophthalmic lenses having a segment with prismatic optical effect | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4288149A | Resin ophthalmic lenses having a prismatic segment | Physics | 6 | Expired |
| US4163541A | Mold for the casting of resin ophthalmic lenses having a prismatic segment | Emerging Cross-Sectional Technologies | 5 | Expired |
| US12129227B2 | Methods, processes, and compositions for improved preparation of HU308 and HU433 | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.