Patrick K. Higgins
10Patents
8h-index
9Co-inventors
65Inventor score
Filing activity: Oct 8, 1982 → Jan 31, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5424119A | Polymeric sheet having oriented multilayer interference thin film flakes therein, product using the same and method | Emerging Cross-Sectional Technologies | 147 | Expired |
| US6761959B1 | Diffractive surfaces with color shifting backgrounds | Emerging Cross-Sectional Technologies | 114 | Expired |
| US6114018A | Paired optically variable article with paired optical structures and ink, paint and foil incorporating the same and method | Emerging Cross-Sectional Technologies | 85 | Expired |
| US5766738A | Paired optically variable article with paired optically variable structures and ink, paint and foil incorporating the same and method | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4565719A | Energy control window film systems and methods for manufacturing the same | Emerging Cross-Sectional Technologies | 47 | Expired |
| US7224528B2 | Optically variable security devices | Emerging Cross-Sectional Technologies | 33 | Expired |
| US7029745B2 | Security articles having diffractive surfaces and color shifting backgrounds | Emerging Cross-Sectional Technologies | 23 | Expired |
| US7005178B2 | Security articles having diffractive surfaces and color shifting backgrounds | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4581282A | Enhanced durability solar insulating window film and assembly using the same | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7754112B2 | Methods for forming security articles having diffractive surfaces and color shifting backgrounds | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.