Eric F. Barkan
24Patents
18h-index
23Co-inventors
81Inventor score
Filing activity: Jul 22, 1983 → Apr 12, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4760248A | Portable laser diode scanning head | Physics | 255 | Expired |
| US4825057A | Portable laser diode scanning head | Physics | 132 | Expired |
| US5734153A | Hand-held scanning head with aiming beam | Physics | 127 | Expired |
| US4816660A | Portable laser diode scanning head | Physics | 121 | Expired |
| US4897532A | Portable laser diode scanning head | Physics | 119 | Expired |
| US6902271B2 | Single vision lenses | Physics | 68 | Expired |
| US5250792A | Portable laser diode scanning head | Physics | 57 | Expired |
| US4835374A | Portable laser diode scanning head | Physics | 56 | Expired |
| US4806742A | Portable laser diode scanning head | Physics | 54 | Expired |
| US4676610A | Method of making progressive lens surface and resulting article | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5861935A | Progressive lens elements and methods for designing and using same | Physics | 42 | Expired |
| US5075538A | Portable laser diode scanning head | Physics | 39 | Expired |
| US5247162A | Portable laser diode scanning head having a focusing lens and an aperture | Physics | 39 | Expired |
| US6361166B1 | Single vision lenses | Physics | 34 | Expired |
| US5468949A | Portable laser diode scanning head | Physics | 33 | Expired |
| US4838675A | Method for improving progressive lens designs and resulting article | Physics | 26 | Expired |
| US5132525A | Portable laser diode scanning head with aiming beam | Physics | 23 | Expired |
| US6074062A | Progressive lens elements and methods for designing and using same | Physics | 20 | Expired |
| US7090349B2 | Single vision lenses | Physics | 17 | Expired |
| US5867246A | Enhanced ophthalmic lens | Physics | 16 | Expired |
| US7428995B1 | Scanning devices and methods using surface emitting laser diodes | Physics | 10 | Expired |
| US6308892A | Detachable battery pack for electro-optical scanners | Physics | 10 | Expired |
| US6000617A | Hand-held scanning head having auditory beeper with a changeable beeping rate | Physics | 9 | Expired |
| US5668364A | Target finder in electro-optical scanners | Physics | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.