Mark W. Johnson
17Patents
5h-index
31Co-inventors
66Inventor score
Filing activity: Sep 30, 1982 → Feb 23, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5130004A | Pigment grinding vehicles containing quaternary ammonium and ternary sulfonium groups | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5466482A | Phosphoric acid monoesters useful for surface treatment of pigments for waterborne coatings | Chemistry; Metallurgy | 14 | Expired |
| US4715898A | Sulfonium resins useful as pigment grinding vehicles in cationic electrodeposition | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4530945A | Pigment grinding vehicle | Chemistry; Metallurgy | 8 | Expired |
| US4540725A | Pigment grinding vehicle | Chemistry; Metallurgy | 6 | Expired |
| US5106469A | Sulfonium resins useful as pigment grinding vehicles in cationic electrodeposition | Emerging Cross-Sectional Technologies | 4 | Expired |
| US5753030A | Crystal growth modifiers for perylene pigments | Chemistry; Metallurgy | 3 | Expired |
| US8696874B2 | Seed layer comprising FCC structure | Physics | 3 | Active |
| US4485259A | Pigment grinding vehicle | Emerging Cross-Sectional Technologies | 3 | Expired |
| US8304066B2 | Toner release coating | Emerging Cross-Sectional Technologies | 2 | Active |
| US8238803B2 | Doctor blade surface energy modification | Physics | 1 | Active |
| US8110299B2 | Granular perpendicular media interlayer for a storage device | Physics | 1 | Active |
| US9487657B2 | High transparency pigments | Chemistry; Metallurgy | 1 | Active |
| US9190095B2 | Interlayer comprising chromium-containing alloy | Physics | 0 | Active |
| US9175168B2 | Pigments with improved dispersibility | Chemistry; Metallurgy | 0 | Active |
| US8017192B2 | Radiation cured coatings for image forming device components | Chemistry; Metallurgy | 0 | Active |
| US10474061B2 | Reduced capacity toner cartridge for an electrophotographic image forming device having an isolated toner volume surrounding an auger of the toner cartridge | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.