David Rauscher
67Patents
14h-index
53Co-inventors
87Inventor score
Filing activity: Sep 30, 1991 → Dec 14, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5739220A | Method of olefin polymerization utilizing hydrogen pulsing, products made therefrom, and method of hydrogenation | Emerging Cross-Sectional Technologies | 179 | Expired |
| US5395810A | Method of making a homogeneous-heterogenous catalyst system for olefin polymerization | Chemistry; Metallurgy | 63 | Expired |
| US6777366B2 | Method for the preparation of metallocene catalysts | Chemistry; Metallurgy | 36 | Expired |
| US5849655A | Polyolefin catalyst for polymerization of propylene and a method of making and using thereof | Chemistry; Metallurgy | 32 | Expired |
| US6855783B2 | Supported metallocene catalysts | Emerging Cross-Sectional Technologies | 26 | Expired |
| US6916892B2 | Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene | Emerging Cross-Sectional Technologies | 26 | Expired |
| US5242876A | Homogeneous-heterogeneous catalyst system for polyolefins | General | 23 | Revoked |
| US5767031A | Ziegler-Natta catalysts modified with metallocenes | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6133385A | Catalyst systems for improved stereoselectivity and broader molecular weight distribution in polymerization of olefins | Emerging Cross-Sectional Technologies | 22 | Expired |
| US8628718B2 | Modified polylactic acid, polymeric blends and methods of making the same | Emerging Cross-Sectional Technologies | 21 | Active |
| US6657025B2 | Production of ultra high melt flow polypropylene resins | Chemistry; Metallurgy | 17 | Expired |
| US5789502A | Process for co-polymerization of propylene and ethylene | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6410663B1 | Electron donors in a Ziegler-Natta catalyst for the production of high melt flow copolymers | Chemistry; Metallurgy | 15 | Expired |
| US6211109A | Process for treating silica with alumoxane | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6156854A | Method of olefin polymerization utilizing hydrogen pulsing, products made therefrom, and method of hydrogenation | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5308818A | Catalyst system for the polymerization of olefins | Chemistry; Metallurgy | 13 | Expired |
| US5891817A | Electron donors for improved olefin polymerization | Chemistry; Metallurgy | 13 | Expired |
| US6147024A | Catalyst systems for improved stereoselectivity and broader molecular weight distribution in polymerization of olefins | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7056991B2 | Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7053163B1 | Controlled comonomer distribution along a reactor for copolymer production | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6657024B1 | Polymerization catalyst system using n-butylmethyldimethoxysilane for preparation of polypropylene film grade resins | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6239058A | Process for activating a metallocene catalyst supported on silica | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7473664B2 | Formation of Ziegler-Natta catalyst | Chemistry; Metallurgy | 9 | Active |
| US7022796B2 | Production of ultra high melt flow polypropylene resins | Chemistry; Metallurgy | 9 | Expired |
| US6323293A | Electron donor and catalyst system for olefin polymerization | Chemistry; Metallurgy | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.