David N Black
1Patents
1Active
1Granted
41Portfolio score
Filing activity: Jul 22, 2009 → Jul 22, 2009 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8011662B2 | Three dimensional maze puzzle and game | Human Necessities | 16 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.