John D. Stewart
17Patents
7h-index
37Co-inventors
66Inventor score
Filing activity: Jun 9, 1986 → Dec 6, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5493852A | Lawnmower attachment spreader | Emerging Cross-Sectional Technologies | 84 | Expired |
| US8957168B1 | Methods for controlling dual catalyst olefin polymerizations with an alcohol compound | Emerging Cross-Sectional Technologies | 22 | Active |
| USD540178S1 | Bottle | General | 17 | Expired |
| US5866661A | Ethylene polymerization processes and products thereof | Chemistry; Metallurgy | 15 | Expired |
| US9340627B1 | Elbow and horizontal configurations in a loop reactor | Performing Operations; Transporting | 15 | Active |
| US9303099B2 | Methods of controlling dual catalyst olefin polymerizations with an alcohol compound | Emerging Cross-Sectional Technologies | 10 | Active |
| USD568165S1 | Bottle and bottle top | General | 8 | Expired |
| USD518378S1 | Bottle top | General | 7 | Expired |
| US6617403B2 | Olefin polymerization process | Chemistry; Metallurgy | 6 | Expired |
| US4801638A | Production of pigmentary copper phthalocyanine | Performing Operations; Transporting | 4 | Expired |
| US4694078A | Production of pigmentary copper phthalocyanine | Performing Operations; Transporting | 3 | Expired |
| US8932527B1 | Elbow and horizontal configurations in a loop reactor | Performing Operations; Transporting | 3 | Active |
| US4801634A | Production of pigmentary copper phthalocyanine | Performing Operations; Transporting | 2 | Expired |
| US10179826B2 | Polymerization catalyst delivery | Performing Operations; Transporting | 1 | Active |
| US10611863B2 | Polymerization catalyst delivery | Performing Operations; Transporting | 1 | Active |
| US10583538B2 | Feed oscillation via variable pitch gears | Performing Operations; Transporting | 0 | Active |
| US8487053B2 | Methods for removing polymer skins from reactor walls | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.