Inventor
GIANNINI UMBERTO
IT42 patents
⚠️ This page may combine multiple inventors who share the name “GIANNINI UMBERTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MONTEDISON SPA
24 patentsUS4226963AOct 7, 1980
Process for the stereoregular polymerization of alpha-olephins
MONTEDISON SPA232 citations98
US4107414AAug 15, 1978
Process for the stereoregular polymerization of alpha olefins
MONTEDISON SPA280 citations98
US5539067AJul 23, 1996
Components and catalysts for the polymerization of olefins
MONTEDISON SPA155 citations96
US4336360AJun 22, 1982
Process for the stereoregular polymerization of alpha-olefins
MONTEDISON SPA93 citations96
US4187196AFeb 5, 1980
Process for the stereoregular polymerization of alpha-olefins
MONTEDISON SPA65 citations96
US4156063AMay 22, 1979
Process for the stereoregular polymerization of alpha olefins
MONTEDISON SPA76 citations96
US4107415AAug 15, 1978
Process for the stereospecific polymerization of alpha-olefins
MONTEDISON SPA83 citations96
US4107413AAug 15, 1978
Process for the stereoregular polymerization of alpha olefins
MONTEDISON SPA153 citations96
US4124532ANov 7, 1978
Catalysts for polymerizing olefins
MONTEDISON SPA68 citations95
US4713416ADec 15, 1987
Thermoplastic compositions including polyphenylenether, having improved impact strength and processability characteristics
MONTEDISON SPA37 citations92
US4614727ASep 30, 1986
Polymerization catalyst
MONTEDISON SPA32 citations92
US4613655ASep 23, 1986
Catalysts for the polymerization of olefins
MONTEDISON SPA45 citations92
US4149990AApr 17, 1979
Components of catalysts useful for the polymerization of α-olefins, and catalysts prepared therefrom
MONTEDISON SPA38 citations92
US4107416AAug 15, 1978
Components of catalysts for use in polymerizing and catalysts prepared therefrom
MONTEDISON SPA17 citations82
US4277589AJul 7, 1981
Components of catalysts useful for the polymerization of alpha-olefins, and catalysts prepared therefrom
MONTEDISON SPA16 citations74
US4250104AFeb 10, 1981
Catalyst-forming components for preparing catalysts useful in the polymerization of olefins
MONTEDISON SPA7 citations74
US5142005AAug 25, 1992
Process for producing crystalline vinyl aromatic polymers having mainly a syndiotactic structure
MONTEDISON SPA12 citations73
US4174429ANov 13, 1979
Process for polymerizing olefins
MONTEDISON SPA8 citations73
US4174299ANov 13, 1979
Catalysts for the polymerization of olefins
MONTEDISON SPA13 citations73
US4542198ASep 17, 1985
Polymerization catalysts
MONTEDISON SPA9 citations72
US4314911AFeb 9, 1982
Polymerization catalyst
MONTEDISON SPA12 citations71
US4265785AMay 5, 1981
Polymerization catalyst
MONTEDISON SPA8 citations71
US4542197ASep 17, 1985
Polymerization catalyst
MONTEDISON SPA4 citations60
US5017678AMay 21, 1991
Thermotropic liquid crystalline polymers
MONTEDISON SPA0 citations51
HIMONT INC
7 patentsUS5049535ASep 17, 1991
Catalysts for the polymerization of olefins
HIMONT INC118 citations96
US5106807AApr 21, 1992
Components and catalysts for the polymerization of olefins
HIMONT INC93 citations95
US4971937ANov 20, 1990
Components and catalysts for the polymerization of olefins
HIMONT INC109 citations95
US5122492AJun 16, 1992
Components and catalysts for the polymerization of olefins
HIMONT INC22 citations93
US5068213ANov 26, 1991
Components and catalysts for the polymerization of olefins
HIMONT INC17 citations73
US4980329ADec 25, 1990
Catalyst component and catalyst for the polymerization of alpha-olefins to stereoregular polymers having narrow molecular weight distribution
HIMONT INC6 citations62
US5369186ANov 29, 1994
Alpha olefins functionalized polymers
HIMONT INC1 citations52
MONTELL TECHNOLOGY COMPANY BV
3 patentsUS5618771AApr 8, 1997
Components and catalysts for the polymerization of olefins
MONTELL TECHNOLOGY COMPANY BV134 citations98
US6194342B1Feb 27, 2001
Components and catalysts for the polymerization of olefins
MONTELL TECHNOLOGY COMPANY BV36 citations95
US5508245AApr 16, 1996
Spherical components and catalysts for the polymerization of olefins
MONTELL TECHNOLOGY COMPANY BV0 citations52