Charles W. Wyckoff
14Patents
13h-index
2Co-inventors
68Inventor score
Filing activity: Apr 11, 1975 → Jan 23, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5670209A | High brightness durable retro-reflecting microspheres and method of making the same | Emerging Cross-Sectional Technologies | 70 | Expired |
| US4040760A | Direction-indicating surface marking apparatus for roadways and the like | Fixed Constructions | 59 | Expired |
| US4681401A | Sheet material marker surface for roadways and the like | Fixed Constructions | 37 | Expired |
| US5108218A | Roadway and similar marker strip and method of forming same | Fixed Constructions | 26 | Expired |
| US4236788A | Direction-indicating surface marker strip for roadways and the like | Fixed Constructions | 26 | Expired |
| US4969713A | Marker strip surface for roadways and the like | Fixed Constructions | 25 | Expired |
| US4121190A | Method of and apparatus for sonar detection and the like with plural substantially orthogonal radiation beams | Physics | 24 | Expired |
| US5087148A | Surface marker strip and methods for providing improved integrity and adhesion to roadways and the like | Fixed Constructions | 23 | Expired |
| US5139590A | Surface marker strip and methods for providing improved integrity and adhesion to roadways and the like | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5316406A | Surface marker strip and methods for providing improved integrity and adhesion to roadway and the like | Fixed Constructions | 19 | Expired |
| US5576097A | High brightness durable retro-reflecting microspheres and method of making the same | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4069787A | Direction-indicating surface marker and the like | Fixed Constructions | 17 | Expired |
| US5557461A | Omnidirectional retro-reflective roadway marker and the like | Physics | 16 | Expired |
| US4345023A | Process for increasing the effective speed of photographic films and improved film structures | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.