Inventor
Hendrik E. Tuinstra
Inventor
Midland, MI, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Jprimary
B01JChemical or physical processes, e.g. catalysis or colloid chemistry19%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds19%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds19%
C07CAcyclic or carbocyclic compounds15%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%
C07DHeterocyclic compounds4%
G01NInvestigating or analysing materials by determining their chemical or physical properties4%
Y02PClimate change mitigation technologies in the production or processing of goods4%
PatentTitleYear
8,383,542'Polymerization modifiers'20138,343,886'Polymerization modifiers'20137,943,546'Polymerization modifiers'20117,553,917'Technique for selecting polymerization modifiers cross reference statement'20097,214,638'Olefin polymerization catalyst composition comprising group 13 amide derivatives'20076,255,499'Process for the hydro-oxidation of olefins to olefin oxides using oxidized gold catalyst'20015,349,102'Process for the preparation of phenyl carbonates or polycarbonates'19945,336,750'Process for the preparation of polycarbonates'19945,276,134'Process for the preparation of phenyl carbonates or polycarbonates'19945,189,139'Preparation of polycarbonates comprising separating bisphenol, converting bisphenol to diaryl carbonate and recycling'19934,973,728'Preparation of aromatic carbonates'19904,794,155'Process for forming arylether polymers'19884,775,943'Method and apparatus for determining polymer molecular weight distribution parameters'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–2001Patents assigned to DOW CHEMICAL CO (8)· patent assignee history
1988–2013Based in Midland, MI, US· patent location history
2011–2013Patents assigned to DOW GLOBAL TECHNOLOGIES LLC (3)· patent assignee history
2013Patents assigned to BEIGZADEH DARYOOSH (2)· patent assignee history
2013Patents assigned to CAMPBELL JR RICHARD E (2)· patent assignee history
2013Patents assigned to DEVORE DAVID D (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DOW CHEMICAL CO | 8 | 1988–2001 |
| DOW GLOBAL TECHNOLOGIES LLC | 3 | 2011–2013 |
| BEIGZADEH DARYOOSH | 2 | 2013 |
| CAMPBELL JR RICHARD E | 2 | 2013 |
| DEVORE DAVID D | 2 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Midland, MI, US | 13 | 1988–2013 |