Inventor
James Spanswick
Inventor
Wheaton, IL, US
Overview
Patents· 33 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 bonds27%
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds14%
A61KPreparations for medical, dental or toiletry purposes10%
A61QSpecific use of cosmetics or similar toiletry preparations10%
C08JWorking-up10%
C08LCompositions of macromolecular compounds6%
C07CAcyclic or carbocyclic compounds5%
Y02PClimate change mitigation technologies in the production or processing of goods5%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients2%
B82YSpecific uses or applications of nanostructures1%
PatentTitleYear
10,899,863Oil soluble rheology modifying star macromolecules202110,696,798Star macromolecules for personal and home care202010,221,285Oil soluble rheology modifying star macromolecules20199,856,331'Control over reverse addition fragmentation transfer polymerization processes'20189,546,225'Control over controlled radical polymerization processes'20179,518,136'Control over reverse addition fragmentation transfer polymerization processes'20169,399,694'Star macromolecules for personal and home care'20169,382,370'Star macromolecules for personal and home care'20169,012,528'Control over controlled radical polymerization processes'20158,962,764'Preparation of functional star macromolecules'20158,822,610'Control over controlled radical polymerization processes'20148,815,971'Control over controlled radical polymerization processes'20148,604,132'Rheology modifying star macrmolecules for fracking fluids and home care'20138,569,421'Star macromolecules for personal and home care'20138,404,788'Atom transfer radical polymerization process'20138,367,051'Preparation of functional gel particles with a dual crosslink network'20138,252,880'Atom transfer dispersion polymerization'20128,173,750'Star macromolecules for personal and home care'20127,893,174'Atom transfer radical polymerization process'20117,893,173'Polymerization process with catalyst reactivation'20117,795,355'Preparation of functional polymers'20107,056,455'Process for the preparation of nanostructured materials'20066,642,407'Production, purification and polymerization of aromatic dicarboxylic acids'20035,032,667'Amide and/or imide containing polymers and monomers for the preparation thereof'19914,925,916'Amide and/or imide containing polymers and monomers for the preparation thereof'19904,772,742'Polyacyl aryl arylates'19884,713,438'Amide and/or imide containing polymers and monomers for the preparation thereof'19874,709,080'Polyacyl aryl arylates'19874,302,382'Color stable aromatic polyesters'19814,271,311'Esterification of phenol catalyzed with a strong base plus boron'19814,101,510'Fire retardant polymer'19783,989,771'Rubbermodified styrene polymers'19763,957,915'Translucent impact polystyrene'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2015Based in Wheaton, IL, US· patent location history
1987–1991Patents assigned to AMOCO CORP (4)· patent assignee history
2006–2015Patents assigned to UNIV CARNEGIE MELLON (8)· patent assignee history
2012–2018Patents assigned to ATRP SOLUTIONS INC (11)· patent assignee history
2012–2015Patents assigned to SPANSWICK JAMES (9)· patent assignee history
2012–2014Patents assigned to JAKUBOWSKI WOJCIECH (6)· patent assignee history
2012–2021Based in Pittsburgh, PA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ATRP SOLUTIONS INC | 11 | 2012–2018 |
| SPANSWICK JAMESself | 9 | 2012–2015 |
| UNIV CARNEGIE MELLON | 8 | 2006–2015 |
| JAKUBOWSKI WOJCIECH | 6 | 2012–2014 |
| AMOCO CORP | 4 | 1987–1991 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wheaton, Illinois, US | 20 | 1976–2015 |
| Pittsburgh, Pennsylvania, US | 13 | 2012–2021 |