Barry Van Gemert
13Patents
11h-index
14Co-inventors
65Inventor score
Filing activity: Sep 16, 1985 → Jul 30, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5066818A | Photochromic naphthopyran compounds | Physics | 197 | Expired |
| US6113814A | Polymerizable polyalkoxylated naphthopyrans | Physics | 182 | Expired |
| US6296785A | Indeno-fused photochromic naphthopyrans | Physics | 162 | Expired |
| US6555028B2 | Polymeric matrix compatibilized naphthopyrans | Physics | 132 | Expired |
| US5464567A | Photochromic tetraphenyl naphthodipyrans | Physics | 80 | Expired |
| US5961892A | Polyalkoxylated naphthopyrans | Physics | 50 | Expired |
| US5573712A | Substituted naphthopyrans | Physics | 45 | Expired |
| US7166357B2 | Photochromic articles that activate behind ultraviolet radiation blocking transparencies and methods for preparation | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5656206A | Substituted naphthopyrans | Chemistry; Metallurgy | 28 | Expired |
| US7465415B2 | Photochromic materials derived from ring-opening monomers and photochromic initiators | Chemistry; Metallurgy | 25 | Expired |
| US7368072B2 | Photochromic contact lenses and methods of manufacturing | Performing Operations; Transporting | 17 | Expired |
| US4696695A | Sulfamoyl urea derivatives | Human Necessities | 5 | Expired |
| US4602939A | Sulfamoyl urea derivatives | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.