Herbert Pfeiffer
29Patents
9h-index
25Co-inventors
75Inventor score
Filing activity: Nov 23, 1977 → Sep 13, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5148205A | Ophthalmic lens having a changing refractive index | Physics | 75 | Expired |
| US4856889A | Uniform strength ophthalmic lens having a gradient refractive index changing rotation-symmetrically about the optical axis and method of making it | Physics | 46 | Expired |
| US5061058A | Opthalmic lens for use in the correction of astigmatism | Physics | 43 | Expired |
| US6655802B2 | Method for producing eyeglasses | Physics | 25 | Expired |
| US5042936A | Progressive ophthalmic lens | Physics | 19 | Expired |
| US6213603A | Progressive ophthalmic lens | Physics | 12 | Expired |
| US5992998A | Ophthalmic lens having a progressive effect | Physics | 11 | Expired |
| US6534169B2 | Polyester film with a high oxygen barrier, the use of the film and process for its production | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7008058B2 | Progressive spectacle lens having two aspherical progressive surfaces | Physics | 9 | Expired |
| US4290471A | Built-up core for the bead of a pneumatic tire for wheel rims with inclined shoulders | Textiles; Paper | 9 | Expired |
| US4166492A | Method of producing an annular bead core assembly for a pneumatic tire | Performing Operations; Transporting | 7 | Expired |
| US6669337B2 | Progressive spectacle lens with low swaying effects | Physics | 7 | Expired |
| US5854669A | Series of lenses | Physics | 7 | Expired |
| US6832834B2 | Method for computing a progressive spectacle lens and methods for manufacturing a spectacle lens of this kind | Physics | 6 | Expired |
| US6231182A | Monofocal ophthalmic lens having two aspherical surfaces | Physics | 6 | Expired |
| US5920372A | Ophthalmic lens having an astigmatic effect | Physics | 5 | Expired |
| US6685316B2 | Method of manufacturing progressive ophthalmic lenses | Physics | 5 | Expired |
| US5880810A | Series for progressive spectacle lenses | Physics | 5 | Expired |
| US4952047A | Progressives brillenglas lens with additional channel of vision | Physics | 4 | Expired |
| US7347546B2 | Individual single-vision spectacle lens | Physics | 3 | Expired |
| US7033024B2 | Method for manufacturing an eyeglass lens | Physics | 2 | Expired |
| US6808263B2 | Progressive spectacle lens producing only slight dynamic distortion | Physics | 2 | Expired |
| US7021763B2 | Method for representing and optimizing a double-progressive spectacle lens | Physics | 2 | Expired |
| US6964478B2 | Progressive spectacle lens | Physics | 1 | Expired |
| US6779889B2 | Progressive spectacle lens exhibiting only slight dynamic change of the properties of use during a horizontal viewing movements | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.