John E. Freeman
2Patents
0Active
2Granted
25Portfolio score
Filing activity: Jan 14, 1987 → Mar 2, 1988
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4939037A | Composite sign post | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4789567A | Abrasion resistant coating and method of application | Performing Operations; Transporting | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.