Inventor
Subhash Vishnu Gangal
Inventor
Hockessin, DE, US
Overview
Patents· 26 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%
C08LCompositions of macromolecular compounds20%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients14%
C09DCoating compositions, e.g. paints, varnishes or lacquers6%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry5%
C08JWorking-up5%
Y10TTechnical subjects covered by former us classification5%
B29CShaping or joining of plastics3%
B01DSeparation2%
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. inserts2%
PatentTitleYear
10,703,829Aqueous polymerization of perfluoromonomer using hydrocarbon surfactant20209,732,212'Aqueous polymerization of fluorinated monomer using a mixture of fluoropolyether acids or salts'20179,676,929'Employing polyalkylene oxides for nucleation in aqueous polymerization of fluoromonomer'20179,574,027'Fluoropolymer resin treatment employing sorbent to reduce fluoropolymer resin discoloration'20179,518,170'Aqueous polymerization of perfluoromonomer using hydrocarbon surfactant'20169,371,405'Nucleation in aqueous polymerization of fluoromonomer'20169,255,164'Aqueous polymerization of perfluoromonomer using hydrocarbon surfactant'20169,175,110'Fluoropolymer resin treatment employing melt extrusion and exposure to oxygen source to reduce discoloration'20159,175,115'Fluoropolymer resin treatment employing heating and oxygen source to reduce discoloration'20159,175,112'Drying wet fluoropolymer resin and exposing to oxygen source to reduce discoloration'20159,074,025'Reducing the telogenic behavior of hydrocarbon-containing surfactants in aqueous dispersion fluoromonomer polymerization'20158,785,560'Employing pretreatment and fluorination of fluoropolymer resin to reduce discoloration'20148,785,516'Fluoropolymer dispersion treatment employing ultraviolet light and oxygen source to reduce fluoropolymer resin discoloration'20148,563,670'Nucleation in aqueous polymerization of fluoromonomer'20138,519,072'Aqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactant'20137,977,438'Aqueous polymerization of fluorinated monomers using polymerization agent comprising fluoropolyether acid or salt and siloxane surfactant'20117,897,682'Aqueous polymerization of fluorinated monomers using polymerization agent comprising fluoropolyether acid or salt and hydrocarbon surfactant'20117,705,074'Aqueous polymerization of fluorinated monomer using polymerization agent comprising fluoropolyether acid or salt and short chain fluorosurfactant'20104,963,609'Low smoke and flame-resistant composition'19904,792,594'Tetrafluoroethylene copolymers'19884,636,549'Tetrafluoroethylene copolymers'19874,370,376'Tetrafluoroethylene polymer dispersions'19834,342,675'Process for preparing aqueous dispersion of polytetrafluoroethylene'19824,189,551'Process for reducing adhesions during suspension polymerization'19804,186,121'Process for obtaining colloidal dispersion of polymeric tetrafluoroethylene'19803,980,612'Process for reducing filler loss during polytetrafluoroethylene agglomeration'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–2015Patents assigned to DU PONT (18)· patent assignee history
1976–1988Based in Parkersburg, WV, US· patent location history
1990–2020Based in Hockessin, DE, US· patent location history
2013–2016Patents assigned to BROTHERS PAUL DOUGLAS (4)· patent assignee history
2013–2016Patents assigned to GANGAL SUBHASH VISHNU (4)· patent assignee history
2013–2016Patents assigned to KHASNIS DIPTI DILIP (3)· patent assignee history
2015–2020Patents assigned to CHEMOURS CO FC LLC (11)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DU PONT | 18 | 1976–2015 |
| CHEMOURS CO FC LLC | 11 | 2015–2020 |
| BROTHERS PAUL DOUGLAS | 4 | 2013–2016 |
| GANGAL SUBHASH VISHNUself | 4 | 2013–2016 |
| KHASNIS DIPTI DILIP | 3 | 2013–2016 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hockessin, Delaware, US | 19 | 1990–2020 |
| Parkersburg, WV, US | 7 | 1976–1988 |