GBF CORPORATION
4Patents
2Active
4Granted
36Portfolio score
Filing activity: Jun 23, 1983 → Sep 28, 2016
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4616045A | Process of preparing an oxygen permeable, styrene based, contact lens material | Chemistry; Metallurgy | 16 | Expired |
| US4528301A | Oxygen permeable, styrene based, contact lens material | Physics | 15 | Expired |
| US9458657B2 | System and method for automatically closing a garage door | Physics | 7 | Active |
| US9982475B2 | System and method for automatically closing a garage door | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.