Frederick D. Stringer
6Patents
5h-index
9Co-inventors
56Inventor score
Filing activity: Dec 13, 1976 → Jun 28, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4390385A | Heat sealable, multi-ply polypropylene film | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4439478A | Heat sealable, multi-ply polypropylene film | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4287151A | Method and apparatus for high speed extrusion of thermoplastic materials | Performing Operations; Transporting | 16 | Expired |
| US4114756A | Winding core for heat shrinkable film material | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4242297A | Winding core for heat shrinkable film material | Performing Operations; Transporting | 5 | Expired |
| US9604423B2 | Tire mold with improved durability | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.