Robert J. Twieg
24Patents
10h-index
54Co-inventors
78Inventor score
Filing activity: Feb 10, 1982 → Dec 6, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5064264A | Photorefractive materials | Physics | 38 | Expired |
| US4397937A | Positive resist compositions | Physics | 36 | Expired |
| US5055439A | Photoacid generating composition and sensitizer therefor | Physics | 22 | Expired |
| US6540938B1 | Liquid crystalline light-modulating device | Physics | 20 | Expired |
| US5250395A | Process for imaging of photoresist including treatment of the photoresist with an organometallic compound | Physics | 19 | Expired |
| US5719690A | Photorefractive glass article | Physics | 16 | Expired |
| US4444626A | Electrochromic printing | Performing Operations; Transporting | 15 | Expired |
| US5361148A | Apparatus for photorefractive two beam coupling | Physics | 14 | Expired |
| US4439280A | Phenothiazine leucodyes for electrochromic recording | Performing Operations; Transporting | 12 | Expired |
| US5460907A | Photorefractive materials | Physics | 11 | Expired |
| US4612210A | Process for planarizing a substrate | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4443302A | Printing medium and use thereof | Performing Operations; Transporting | 7 | Expired |
| US5607799A | Optical photorefractive article | Physics | 7 | Expired |
| US4478687A | Phenazine leucodyes for electrochromic recording | Performing Operations; Transporting | 6 | Expired |
| US4800152A | Negative resist compositions | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5783114A | Liquid crystalline display | Chemistry; Metallurgy | 3 | Expired |
| US5068054A | Ferroelectric liquid crystals | Chemistry; Metallurgy | 3 | Expired |
| US5660921A | Poly (aryl ether benzimidazoles) their use capping layers in microelectronic structures | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5593720A | Process for making a multileveled electronic package | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8772048B2 | Fluorogenic compounds converted to fluorophores by photochemical or chemical means and their use in biological systems | Emerging Cross-Sectional Technologies | 0 | Active |
| US5516874A | Poly(aryl ether benzimidazoles) | Emerging Cross-Sectional Technologies | 0 | Expired |
| US8153446B2 | Fluorogenic compounds converted to fluorophores by photochemical or chemical means and their use in biological systems | Emerging Cross-Sectional Technologies | 0 | Active |
| US8300189B2 | Liquid crystal device and methods thereof | Physics | 0 | Active |
| US11814563B2 | Bioreachable chiral dopants for liquid crystal applications | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.