William E. Long
27Patents
8h-index
25Co-inventors
75Inventor score
Filing activity: Feb 23, 1979 → Oct 17, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6259956A | Method and apparatus for site management | Physics | 229 | Expired |
| US4237281A | Dyestuffs containing amino or imino groups | Physics | 19 | Expired |
| US5376510A | Concentrated photographic developing solution | Physics | 19 | Expired |
| US6522754B1 | Digital vehicle microphone system and method | Electricity | 14 | Expired |
| US4728601A | Tetra-aza indene compounds | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5793281A | Method and apparatus for point of sale promotional announcements | Physics | 13 | Expired |
| US7382280B2 | Parking violation recording system and method | Physics | 11 | Expired |
| US4753869A | Photographic developing agents containing stable, soluble, pyrazolidinones | Physics | 9 | Expired |
| US4609620A | Pyrazolone compounds and a process for their manufacture | Physics | 8 | Expired |
| US4917992A | Developing agents | Physics | 8 | Expired |
| US4788115A | Processing holograms | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4446216A | Photographic material | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4269928A | Process for the production of photographic images by dye diffusion transfer and photographic material suitable in this process | Physics | 5 | Expired |
| US4353974A | Process for the production of photographic images and photographic materials used in this process | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4948714A | Processing of photographic silver halide materials | Physics | 3 | Expired |
| US4386149A | Process for the production of photographic images by dye diffusion transfer and photographic material suitable in this process | Physics | 3 | Expired |
| US4446227A | Dyestuffs and their use in photographic material | Physics | 1 | Expired |
| US4687846A | Pyrazolidinone salts as developing agents | Physics | 1 | Expired |
| US4560646A | Protected developing agents | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4482716A | Dyestuffs and their use in photographic material | Physics | 1 | Expired |
| US4248772A | Positively or negatively charged azo compounds containing a ballasting group | Physics | 1 | Expired |
| US4216146A | Azo(hydrazo)-anthraquinone compounds | Physics | 1 | Expired |
| US4285859A | Azo compounds useful in a photographic dye diffusion transfer process | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4732981A | 3-pyrazolidinone salts | Physics | 0 | Expired |
| US5770351A | Processing of monochrome photographic silver halide print material | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.