Rudolf Barth
14Patents
9h-index
17Co-inventors
69Inventor score
Filing activity: Mar 7, 1977 → Dec 29, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4315673A | Progressive power ophthalmic lens | Physics | 111 | Expired |
| US4240719A | Progressive ophthalmic lens | Physics | 99 | Expired |
| US4955712A | Multifocal lens | Physics | 73 | Expired |
| US5210553A | Progressive ophthalmic lens with positive distance power | Physics | 27 | Expired |
| US4906090A | Spectacle lens for half-eye spectacles | Physics | 26 | Expired |
| US5771089A | Progressive spectacle lens | Physics | 26 | Expired |
| US4946270A | Progressive power ophthalmic lens | Physics | 16 | Expired |
| US6213603A | Progressive ophthalmic lens | Physics | 12 | Expired |
| US4504128A | Spectacle lens with high positive refractive power | Physics | 12 | Expired |
| US5854669A | Series of lenses | Physics | 7 | Expired |
| US5920372A | Ophthalmic lens having an astigmatic effect | Physics | 5 | Expired |
| US5880810A | Series for progressive spectacle lenses | Physics | 5 | Expired |
| US4952047A | Progressives brillenglas lens with additional channel of vision | Physics | 4 | Expired |
| US9746320B2 | Device for adjusting the light source of an electronic alignment device, operation being simplified by motorized adjustment of the light source, and a method in which this device is used | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.