PBH, Inc.
8Patents
0Active
8Granted
32Portfolio score
Filing activity: Oct 26, 1993 → Nov 9, 2001
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5905561A | Annular mask lens having diffraction reducing edges | Performing Operations; Transporting | 199 | Expired |
| US5662706A | Variable transmissivity annular mask lens for the treatment of optical aberrations | Human Necessities | 195 | Expired |
| US5965330A | Methods for fabricating annular mask lens having diffraction-reducing edges | Physics | 122 | Expired |
| US6284161A | Colored contact lenses and method of making same | Physics | 43 | Expired |
| US6337040B1 | Colored contact lenses and method of making same | Physics | 37 | Expired |
| US5818573A | Opthalmic lens inspection system | Physics | 32 | Expired |
| US5801822A | Ophthalmic lens inspection system | Physics | 26 | Expired |
| US6743438B2 | Colored contact lenses and method of making same | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.