Umberto Giannini
43Patents
20h-index
38Co-inventors
85Inventor score
Filing activity: Mar 26, 1976 → Jun 6, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4107414A | Process for the stereoregular polymerization of alpha olefins | Emerging Cross-Sectional Technologies | 146 | Expired |
| US4226963A | Process for the stereoregular polymerization of alpha-olephins | Emerging Cross-Sectional Technologies | 104 | Expired |
| US5049535A | Catalysts for the polymerization of olefins | Emerging Cross-Sectional Technologies | 98 | Expired |
| US4978648A | Catalysts for the polymerization of olefins | Chemistry; Metallurgy | 93 | Expired |
| US4107413A | Process for the stereoregular polymerization of alpha olefins | Emerging Cross-Sectional Technologies | 91 | Expired |
| US4971937A | Components and catalysts for the polymerization of olefins | Chemistry; Metallurgy | 74 | Expired |
| US5539067A | Components and catalysts for the polymerization of olefins | Emerging Cross-Sectional Technologies | 71 | Expired |
| US4107415A | Process for the stereospecific polymerization of alpha-olefins | Emerging Cross-Sectional Technologies | 66 | Expired |
| US4336360A | Process for the stereoregular polymerization of alpha-olefins | Chemistry; Metallurgy | 59 | Expired |
| US4156063A | Process for the stereoregular polymerization of alpha olefins | Emerging Cross-Sectional Technologies | 58 | Expired |
| US5618771A | Components and catalysts for the polymerization of olefins | Emerging Cross-Sectional Technologies | 58 | Expired |
| US5126303A | Catalysts for the polymerization of olefins | Emerging Cross-Sectional Technologies | 56 | Expired |
| US4187196A | Process for the stereoregular polymerization of alpha-olefins | Emerging Cross-Sectional Technologies | 51 | Expired |
| US5106807A | Components and catalysts for the polymerization of olefins | Chemistry; Metallurgy | 49 | Expired |
| US4124532A | Catalysts for polymerizing olefins | Chemistry; Metallurgy | 33 | Expired |
| US4149990A | Components of catalysts useful for the polymerization of .alpha.-olefins, and catalysts prepared therefrom | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4713416A | Thermoplastic compositions including polyphenylenether, having improved impact strength and processability characteristics | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4613655A | Catalysts for the polymerization of olefins | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6194342A | Components and catalysts for the polymerization of olefins | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4889896A | Process for the imidization of copolymers of maleic anhydride with vinyl-aromatic monomers | Chemistry; Metallurgy | 20 | Expired |
| US4614727A | Polymerization catalyst | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4107416A | Components of catalysts for use in polymerizing and catalysts prepared therefrom | Chemistry; Metallurgy | 15 | Expired |
| US6515085B1 | Components and catalysts for the polymerization of olefins | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4277589A | Components of catalysts useful for the polymerization of alpha-olefins, and catalysts prepared therefrom | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5068213A | Components and catalysts for the polymerization of olefins | Chemistry; Metallurgy | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.