Thomas C. Johnson
18Patents
8h-index
16Co-inventors
69Inventor score
Filing activity: Nov 24, 1976 → Jun 1, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5629377A | Water absorbent resin particles of crosslinked carboxyl containing polymers and method of preparation | Chemistry; Metallurgy | 67 | Expired |
| US5863440A | Methods for ameliorating oil spills in marine and inland waters | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4833222A | Crosslinker stabilizer for preparing absorbent polymers | Human Necessities | 32 | Expired |
| US6143172A | Methods for ameliorating hydrocarbon spills in marine and inland waters | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5088323A | Actuator for visual indicator | Physics | 27 | Expired |
| US5075344A | Process for producing a superabsorbent polymer | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4908607A | Anti-pickpocket alarm | Physics | 19 | Expired |
| US6067927A | Visual indicator | Physics | 15 | Expired |
| US4799383A | Visual indicator | Physics | 7 | Expired |
| USD642231S1 | Golfing ball line marker | General | 6 | Expired |
| USD245488S | Fire alarm | General | 6 | Expired |
| US4829820A | Visual indicator | Physics | 6 | Expired |
| USD740233S1 | Activator shield | General | 6 | Active |
| US5416160A | Water-swellable polymers having improved color | Chemistry; Metallurgy | 5 | Expired |
| USD848874S1 | Material level indicator actuator | General | 1 | Active |
| US10408659B2 | Bin level inicator | Performing Operations; Transporting | 0 | Active |
| USD806899S1 | Canister holder | General | 0 | Active |
| US10557740B2 | Bin level indicator | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.