Joseph E. Johnson
37Patents
16h-index
42Co-inventors
81Inventor score
Filing activity: Mar 9, 1973 → Nov 4, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5837045A | Colored pigment and aqueous compositions containing same | Physics | 249 | Expired |
| US5571311A | Ink jet ink formulations containing carbon black products | Chemistry; Metallurgy | 245 | Expired |
| US5630868A | Ink jet ink formulations containing modified carbon products | Chemistry; Metallurgy | 176 | Expired |
| US5922118A | Modified colored pigments and ink jet inks, inks, and coatings containing modified colored pigments | Chemistry; Metallurgy | 162 | Expired |
| US5803959A | Modified carbon products and ink jet inks, inks and coatings containing modified carbon products | Chemistry; Metallurgy | 108 | Expired |
| US5469993A | Dispensing system | Performing Operations; Transporting | 77 | Expired |
| US6277183A | Ink compositions containing metal oxides | Chemistry; Metallurgy | 51 | Expired |
| US6328894A | Processes of purifying a dispersion and making inkjet inks | Emerging Cross-Sectional Technologies | 51 | Expired |
| US6336965B1 | Modified pigments having improved dispersing properties | Emerging Cross-Sectional Technologies | 46 | Expired |
| US6478863B2 | Modified pigments having improved dispersing properties | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5958999A | Ink compositions and method for generating images produced therefrom | Chemistry; Metallurgy | 39 | Expired |
| US6432194B1 | Method of attaching a group to a pigment | Emerging Cross-Sectional Technologies | 37 | Expired |
| US6069190A | Ink compositions having improved latency | Chemistry; Metallurgy | 37 | Expired |
| USD380148S | Dispensing system | General | 30 | Expired |
| US6050459A | Rigid dip tube connector for a liquid spray dispenser | Performing Operations; Transporting | 28 | Expired |
| US7056962B2 | Modified pigments having improved dispersing properties | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4101043A | Container and support clip combination | Performing Operations; Transporting | 15 | Expired |
| US5890633A | Two component, molded plastic dispenser operating on push-pull principle | Performing Operations; Transporting | 15 | Expired |
| US3933527A | Fine tuning power diodes with irradiation | Electricity | 13 | Expired |
| US4235645A | Process for forming glass-sealed multichip semiconductor devices | Electricity | 11 | Expired |
| US6555175B2 | Process for the surface modification of a polymeric substrate | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8271412B2 | Methods and systems for determining entropy metrics for networks | Electricity | 8 | Active |
| US4075037A | Tailoring of recovery charge in power diodes and thyristors by irradiation | Electricity | 6 | Expired |
| US4040877A | Method of making a transistor device | Electricity | 4 | Expired |
| US9717292B2 | Knee protection device | Human Necessities | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.