Manfred Eich
10Patents
7h-index
15Co-inventors
63Inventor score
Filing activity: Feb 3, 1987 → Aug 22, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5023859A | Optical data storage apparatus and method utilizing an amorphous polymer which exhibits photochromic properties | Physics | 36 | Expired |
| US4837745A | Process for the reversible optical storage of data | Physics | 35 | Expired |
| US5973823A | Method for the mechanical stabilization and for tuning a filter having a photonic crystal structure | Physics | 30 | Expired |
| US5024784A | Device for reversible optical data storage using polymeric liquid crystals | Physics | 25 | Expired |
| US4886718A | Device for reversible optical data storage | Physics | 15 | Expired |
| US4896292A | Apparatus for the reversible, optical storage of data | Physics | 15 | Expired |
| US6819410B2 | Process for identifying an embossed image of a coin in an automatic coin tester | Physics | 7 | Expired |
| US11506919B2 | Integrated faraday rotator | Physics | 5 | Active |
| US7004299B2 | Process for identifying an embossed image of a coin in an automatic coin machine | Physics | 3 | Expired |
| US5502135A | Copolymers based on dicarboximides, alkenyl isocyanates and/or alkenylurethanes | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.