Erhard Effer
3Patents
3h-index
4Co-inventors
43Inventor score
Filing activity: Mar 19, 1987 → Jan 12, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4852974A | Anti-reflection film for an optical element consisting of an organic material | Physics | 64 | Expired |
| US6171525A | Process for the production of a photochromic object | Physics | 49 | Expired |
| US5498686A | Optically transparent photochromic plastic material | Physics | 31 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.