John Freeman
8Patents
5h-index
11Co-inventors
56Inventor score
Filing activity: Aug 14, 1987 → Apr 21, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5520243A | Metal strip casting | Performing Operations; Transporting | 27 | Expired |
| US4830409A | Composite pipe coupling | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5660375A | Composite guardrail post | Fixed Constructions | 15 | Expired |
| US5983980A | Casting steel strip | Performing Operations; Transporting | 11 | Expired |
| US5584338A | Metal strip casting | Performing Operations; Transporting | 8 | Expired |
| US5238050A | Strip casting | Performing Operations; Transporting | 5 | Expired |
| US5345994A | Casting metal strip | Performing Operations; Transporting | 5 | Expired |
| US5260026A | Apparatus for preparing phosphorus trichloride | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.