Sandra D. Schregenberger
26Patents
13h-index
32Co-inventors
77Inventor score
Filing activity: Sep 4, 1992 → Jan 25, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5525678A | Process for controlling the MWD of a broad/bimodal resin produced in a single reactor | Chemistry; Metallurgy | 149 | Expired |
| US5539076A | Bimodal molecular weight distribution polyolefins | Chemistry; Metallurgy | 124 | Expired |
| US5882750A | Single reactor bimodal HMW-HDPE film resin with improved bubble stability | Emerging Cross-Sectional Technologies | 53 | Expired |
| US5284613A | Producing blown film and blends from bimodal high density high molecular weight film resin using magnesium oxide-supported Ziegler catalyst | Chemistry; Metallurgy | 46 | Expired |
| US5614456A | Catalyst for bimodal molecular weight distribution ethylene polymers and copolymers | Emerging Cross-Sectional Technologies | 42 | Expired |
| US7531594B2 | Articles from plasticized polyolefin compositions | Chemistry; Metallurgy | 34 | Expired |
| US7795366B2 | Modified polyethylene compositions | Chemistry; Metallurgy | 27 | Active |
| US6410474B1 | Process for controlling the MWD of a broad/bimodal resin in a single reactor | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6417130B1 | One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6051525A | Catalyst for the manufacture of polyethylene with a broad or bimodal molecular weight distribution | Emerging Cross-Sectional Technologies | 17 | Expired |
| US7619026B2 | Plasticized polyolefin compositions | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6037296A | Comonomer pretreated bimetallic catalyst for blow molding and film applications | Chemistry; Metallurgy | 15 | Expired |
| US6403181B1 | Premium pipe resins | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6316546A | Ethylene polymer film resins | Chemistry; Metallurgy | 13 | Expired |
| US7619027B2 | Plasticized polyolefin compositions | Emerging Cross-Sectional Technologies | 12 | Active |
| US7652093B2 | Plasticized polyolefin compositions | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6486089B1 | Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6420298B1 | Metallocene catalyst compositions, processes for making polyolefin resins using such catalyst compositions, and products produced thereby | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6458911B1 | Ethylene polymer film resins | Chemistry; Metallurgy | 8 | Expired |
| US8211968B2 | Plasticized polyolefin compositions | Emerging Cross-Sectional Technologies | 6 | Active |
| US6569963B2 | Process for controlling the MWD of a broad or bimodal resin in a single reactor | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7875670B2 | Articles from plasticized polyolefin compositions | Chemistry; Metallurgy | 4 | Active |
| US6713425B2 | One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6855654B2 | Bimetallic catalyst for ethylene polymerization reactions with uniform component distribution | Emerging Cross-Sectional Technologies | 3 | Expired |
| US6740617B2 | One pot preparation of bimetallic catalysts for ethylene 1-olefin copolymerization | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.