Method for identifying characteristics of contact lenses
US6079826A · kind A · utility
31Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1998 |
| Grant date | Jun 27, 2000 |
| Priority date | — |
| Expiry date | Apr 2, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Contact lenses include a posterior surface including a first identifiable marking, and an anterior surface includes a second identifiable marking different from the first marking, the first and second markings in combination designating the optical correction of the lenses. The lenses are useful in methods where the markings are used to identify characteristics of the lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.