David C. Weigel
13Patents
8h-index
13Co-inventors
65Inventor score
Filing activity: Jul 6, 1979 → Aug 23, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4328181A | Indicator material | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4883747A | Color photothermographic elements | Physics | 24 | Expired |
| US5576074A | Laser write process for making a conductive metal circuit | Electricity | 14 | Expired |
| US4585734A | Photothermographic toners | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5275932A | Thermal development accelerators for thermographic materials | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4923792A | Color photothermographic elements | Chemistry; Metallurgy | 11 | Expired |
| US4782010A | Photohermographic emulsions having stable color forming developers | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4587211A | Photothermographic stabilizers for syringaldazine leuco dyes | Physics | 9 | Expired |
| US5185231A | Dry silver systems with fluoran leuco dyes | Physics | 6 | Expired |
| US4795697A | Stabilization of ketazine dyes | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5206112A | Positive imaging diffusion - transfer dry silver system | Physics | 3 | Expired |
| US5026633A | Color photothermographic materials with development accelerator | Physics | 1 | Expired |
| US5278024A | Positive imaging diffusion-transfer dry silver system using formazan dye | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.