Inventor
William G. Sheard
Inventor
Houston, TX, US
Overview
Patents· 12 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 bonds32%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry24%
C08LCompositions of macromolecular compounds16%
C07CAcyclic or carbocyclic compounds8%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
F16LPipes3%
Y02PClimate change mitigation technologies in the production or processing of goods3%
PatentTitleYear
10,336,840Propylene ethylene random copolymer suitable for pipe20198,779,058'High melt flow propylene impact copolymer and method'20148,263,692'Propylene-based polymer, articles, and process for producing same'20128,106,138'Random propylene copolymer compositions, articles and process'20128,067,510'High melt flow propylene impact copolymer and method'20117,935,766'Propylene impact copolymer and method'20117,687,426'Catalyst composition with monocarboxylic acid ester internal donor and propylene polymerization process'20107,393,806'Catalyst composition with monocarboxylic acid ester internal donor and propylene polymerization process'20086,624,266'Compositions and methods of using preactivated unsupported catalyst compositions having a given concentration'20036,391,985'High condensing mode polyolefin production under turbulent conditions in a fluidized bed'20024,956,426'Process for controlled polymerization of stereospecific alpha-olefins having preselected isotacticity'19904,882,380'Process for the production of impact polypropylene copolymers'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2011Patents assigned to UNION CARBIDE CHEM PLASTIC (5)· patent assignee history
1989–1990Based in South Charleston, WV, US· patent location history
2002–2014Based in Houston, TX, US· patent location history
2008–2010Patents assigned to DOW GLOBAL TECHNOLOGIES INC (2)· patent assignee history
2011–2014Patents assigned to CHEN LINFENG (4)· patent assignee history
2011–2014Patents assigned to SHEARD WILLIAM G (4)· patent assignee history
2011–2012Patents assigned to DOW GLOBAL TECHNOLOGIES LLC (3)· patent assignee history
2011–2012Based in Missouri City, TX, US· patent location history
2019Based in Hallsville, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNION CARBIDE CHEM PLASTIC | 5 | 1989–2011 |
| CHEN LINFENG | 4 | 2011–2014 |
| SHEARD WILLIAM Gself | 4 | 2011–2014 |
| DOW GLOBAL TECHNOLOGIES LLC | 3 | 2011–2012 |
| DOW GLOBAL TECHNOLOGIES INC | 2 | 2008–2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 7 | 2002–2014 |
| Missouri City, Texas, US | 2 | 2011–2012 |
| South Charleston, WV, US | 2 | 1989–1990 |
| Hallsville, Texas, US | 1 | 2019 |