Philip Wallis
4Patents
3h-index
11Co-inventors
51Inventor score
Filing activity: Sep 17, 1985 → Apr 7, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4868023A | Polyolefin article having permanent indicia thereon | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4726845A | Hybrid marking instrument and writing ink composition | Chemistry; Metallurgy | 26 | Expired |
| US4954002A | Writing instrument with membrane vent and their manufacture | Performing Operations; Transporting | 7 | Expired |
| US8632699B2 | Fugitive viscosity and stability modifiers for carbon nanotube compositions | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.