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Inventor

David Rauscher

Inventor
Angleton, TX, US

Overview

67→
Patents
1993–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 67 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C08Fprimary
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds35%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
C08LCompositions of macromolecular compounds7%
B29CShaping or joining of plastics6%
Y02PClimate change mitigation technologies in the production or processing of goods5%
Y10TTechnical subjects covered by former us classification5%
B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%
C08JWorking-up4%
PatentTitleYear
10,711,077Ziegler-natta catalyst composition with controlled morphology202010,240,009Composites of polyethylene and polylactic acid201910,113,062Modified polylactic acid, polymeric blends and methods of making the same20189,890,226'High melt strength polypropylene and methods of making same'20189,828,502Single pellet polymeric compositions20179,650,448'Formation of a Ziegler-Natta catalyst'20179,624,321'Formation of a Ziegler-Natta catalyst'20179,550,892'Modified polylactic acid, polymeric blends and methods of making the same'20179,327,476'Compatibilized polymeric compositions comprising polyolefin-polylactic acid copolymers and methods of making the same'20169,206,305'Polypropylene and polylactic acid blends of injection stretch blow molding applications'20159,139,728'Single pellet polymeric compositions'20159,127,105'Supported metallocene catalysts'20158,859,703'Bimodal pipe resin and products made therefrom'20148,735,519'Polyolefin produced with a high performance support for a metallocene catalyst system'20148,710,162'Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene'20148,642,701'Polypropylene and polylactic acid blends of injection stretch blow molding applications'20148,628,718'Modified polylactic acid, polymeric blends and methods of making the same'20148,586,192'Compatibilized polymeric compositions comprising polyolefin-polylactic acid copolymers and methods of making the same'20138,563,671'Supported metallocene catalysts'20138,461,276'Multi-component catalyst systems and polymerization processes for forming broad composition distribution polymers'20138,436,112'Polyolefin production with a high performance support for a metallocene catalyst system'20138,299,188'Supported metallocene catalysts'20128,278,403'Multi-component catalyst systems and polymerization processes for forming broad composition distribution polymers'20128,110,644'Bimodal pipe resin and products made therefrom'20127,960,484'Method for transitioning between ziegler-natta and metalocene catalysts in a bulk loop reactor for the production of polypropylene'20117,645,834'Catalyst system for production of polyolefins'20107,473,664'Formation of Ziegler-Natta catalyst'20097,470,764'Polymerization catalyst system using n-butylmethyldimethoxysilane for preparation of polypropylene film grade resins'20087,390,860'Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene'20087,309,678'Polyamide supported metallocene catalysts'20077,220,806'Process for increasing ethylene incorporation into random copolymers'20077,202,191'Polymerization catalyst system using n-butylmethyldimethoxysilane for preparation of polypropylene film grade resins'20077,125,937'Polyorganosilsesquioxane supported metallocene catalysts'20067,109,143'Polymerization catalyst system using n-butymethyldimethoxysilane for preparation of polypropylene film grade resins'20067,056,991'Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene'20067,053,163'Controlled comonomer distribution along a reactor for copolymer production'20067,022,796'Production of ultra high melt flow polypropylene resins'20066,916,892'Method for transitioning between Ziegler-Natta and metallocene catalysts in a bulk loop reactor for the production of polypropylene'20056,878,787'Polyamide supported metallocene catalysts'20056,855,783'Supported metallocene catalysts'20056,777,366'Method for the preparation of metallocene catalysts'20046,667,380'Catalyst formulation and polymerization processes'20036,657,025'Production of ultra high melt flow polypropylene resins'20036,657,024'Polymerization catalyst system using n-butylmethyldimethoxysilane for preparation of polypropylene film grade resins'20036,489,411'Catalyst formulation and polymerization processes'20026,410,663'Electron donors in a Ziegler-Natta catalyst for the production of high melt flow copolymers'20026,384,160'Polyolefin catalyst for polymerization of propylene and a method of making and using thereof'20026,323,293'Electron donor and catalyst system for olefin polymerization'20016,255,247'Optimum external co-catalyst electron donor molar ratio in propylene polymerization'20016,239,058'Process for activating a metallocene catalyst supported on silica'20016,211,109'Process for treating silica with alumoxane'20016,166,153'Process for the syndiotactic propagation of olefins'20006,156,854'Method of olefin polymerization utilizing hydrogen pulsing, products made therefrom, and method of hydrogenation'20006,147,024'Catalyst systems for improved stereoselectivity and broader molecular weight distribution in polymerization of olefins'20006,133,385'Catalyst systems for improved stereoselectivity and broader molecular weight distribution in polymerization of olefins'20005,891,817'Electron donors for improved olefin polymerization'19995,849,655'Polyolefin catalyst for polymerization of propylene and a method of making and using thereof'19985,789,502'Process for co-polymerization of propylene and ethylene'19985,767,031'Ziegler-Natta catalysts modified with metallocenes'19985,739,220'Method of olefin polymerization utilizing hydrogen pulsing, products made therefrom, and method of hydrogenation'19985,432,139'Catalyst formulation and polymerization process'19955,395,810'Method of making a homogeneous-heterogenous catalyst system for olefin polymerization'19955,378,672'Methods and systems for multi-component catalyst formulation'19955,330,947'Boron alkyl as co-catalyst to improve polymerization yield and control polydispersity'19945,308,818'Catalyst system for the polymerization of olefins'19945,254,517'Diethylaluminum alkoxide/aluminum alkyl co-catalyst for improved polymerization yield'19935,242,876'Homogeneous-heterogeneous catalyst system for polyolefins'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993–2020Patents assigned to FINA TECHNOLOGY (66)· patent assignee history
1993–2003Based in Webster, TX, US· patent location history
1998–2020Based in Angleton, TX, US· patent location history
2009Based in Agleton, TX, US· patent location history
2012–2020Patents assigned to RAUSCHER DAVID (12)· patent assignee history
2012–2014Patents assigned to GAUTHIER WILLIAM (5)· patent assignee history
2012–2014Patents assigned to COFFY TIM (4)· patent assignee history
2013–2015Patents assigned to ASHBAUGH JOHN (4)· patent assignee history
2016–2019Based in Longview, TX, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FINA TECHNOLOGY661993–2020
RAUSCHER DAVIDself122012–2020
GAUTHIER WILLIAM52012–2014
ASHBAUGH JOHN42013–2015
COFFY TIM42012–2014
Locations
LocationPatentsSpan
Angleton, Texas, US431998–2020
Webster, Texas, US151993–2003
Longview, Texas, US82016–2019
Agleton, Texas, US12009