John David Fergason
1Patents
1Active
1Granted
38Portfolio score
Filing activity: May 29, 2015 → May 29, 2015
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US9867737B2 | Auto-darkening filter of welding shield | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.