Yumito Uehara
14Patents
9h-index
22Co-inventors
72Inventor score
Filing activity: Jan 22, 1979 → Aug 20, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5973084A | Method for polymerizing olefins using a novel catalyst | Emerging Cross-Sectional Technologies | 46 | Expired |
| US5928982A | Catalyst for polymerizing an olefin and method for polymerizing the olefin | Emerging Cross-Sectional Technologies | 43 | Expired |
| US6376416B1 | Olefin polymerization catalyst and process for producing olefin polymer | Chemistry; Metallurgy | 22 | Expired |
| US6048817A | Polymerization of olefins | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4978722A | Method for producing a propylene-.alpha.-olefin block copolymer | Chemistry; Metallurgy | 17 | Expired |
| US4808667A | Method for producing an .alpha.-olefin block copolymer | Chemistry; Metallurgy | 13 | Expired |
| US4492787A | Process for continuously producing propylene-ethylene block copolymer | Chemistry; Metallurgy | 12 | Expired |
| US6444763B1 | Polymerization of olefins | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5547722A | Ethylene polymer and fuel tank comprising the same | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4258161A | Process for polymerizing propylene | Chemistry; Metallurgy | 8 | Expired |
| US4357452A | Process for polymerizing propylene | Chemistry; Metallurgy | 4 | Expired |
| US4534953A | Process for preparing solid titanium trichloride useful for the polymerization of an .alpha.-olefin | Chemistry; Metallurgy | 3 | Expired |
| US5428110A | Process for producing propylene copolymer | Chemistry; Metallurgy | 1 | Expired |
| US6448356B1 | Ethylene-&agr;-olefin copolymer | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.