Holdcroft; Steven

Patent Applications and Registrations

Patent applications and USPTO patent grants for Holdcroft; Steven.The latest application filed is for "polyphenylenes, methods, and uses thereof".

Company Profile

6.12.16

Holdcroft; Steven - Pitt Meadows CA
Holdcroft; Steven - Burnaby CA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Stable poly(imidazolium) hydroxides Grant 11,299,464 - Holdcroft , et al. April 12, 2	2022-04-12
Crosslinking of hydroxide stable, polybenzimidazoliums and polyimidazoliums membranes and ionomers Grant 11,230,626 - Holdcroft , et al. January 25, 2	2022-01-25
Polyphenylenes, Methods, And Uses Thereof App 20200362129 - Holdcroft; Steven ; et al.	2020-11-19
Poly(phenylene) and m-Terphenyl as protecting groups for benzimidazolium hydroxides Grant 10,800,874 - Holdcroft , et al. October 13, 2	2020-10-13
Stable Poly(imidazolium) Hydroxides App 20190382353 - Holdcroft; Steven ; et al.	2019-12-19
Energy Conversion Devices Including Stable Ionenes App 20190202991 - Holdcroft; Steven ; et al.	2019-07-04
Crosslinking of Hydroxide Stable, Polybenzimidazoliums and Polyimidazoliums Membranes and Ionomers App 20190169372 - Holdcroft; Steven ; et al.	2019-06-06
Poly(phenylene) And M-terphenyl As Protecting Groups For Benzimidazolium Hydroxides App 20190016851 - Holdcroft; Steven ; et al.	2019-01-17
Hydroxide-stable ionenes Grant 10,005,886 - Holdcroft , et al. June 26, 2	2018-06-26
Polymer of fluorine-containing sulfonated poly(arylene ether)s and method of manufacturing the same Grant 9,748,594 - Huang , et al. August 29, 2	2017-08-29
Polymer Of Fluorine-containing Sulfonated Poly(arylene Ether)s And Method Of Manufacturing The Same App 20170214075 - HUANG; Wen-yao ; et al.	2017-07-27
Polymer of fluorine-containing sulfonated poly(arylene ether)s and method of manufacturing the same Grant 9,644,069 - Huang , et al. May 9, 2	2017-05-09
Hydroxide-Stable Ionenes App 20170037188 - Holdcroft; Steven ; et al.	2017-02-09
Polymer Of Fluorine-containing Sulfonated Poly(arylene Ether)s And Method Of Manufacturing The Same App 20170009016 - HUANG; Wen-yao ; et al.	2017-01-12
Anion-conducting polymer Grant 9,511,362 - Thomas , et al. December 6, 2	2016-12-06
Anion-conducting Polymer App 20160193599 - Thomas; Owen ; et al.	2016-07-07
Anion-conducting polymer Grant 9,315,630 - Thomas , et al. April 19, 2	2016-04-19
Polymer of sulfonated poly(arylene ether)s and manufacturing method thereof Grant 9,209,472 - Huang , et al. December 8, 2	2015-12-08
Polymer Of Sulfonated Poly(arylene Ether)s And Manufacturing Method Thereof App 20150200411 - HUANG; Wen-yao ; et al.	2015-07-16
Polymer of sulfonated poly(arlene ether)s and manufacturing method thereof Grant 9,018,336 - Huang , et al. April 28, 2	2015-04-28
Fuel cell catalyst layer having sulfonated poly(arylene ether)s and manufacturing method thereof Grant 8,987,407 - Huang , et al. March 24, 2	2015-03-24
Anion-conducting Polymer App 20150073063 - Thomas; Owen ; et al.	2015-03-12
Fuel Cell Catalyst Layer Having Sulfonated Poly(arylene Ether)s And Manufacturing Method Thereof App 20150030965 - HUANG; Wen-yao ; et al.	2015-01-29
Polymer Of Sulfonated Poly(arylene Ether)s And Manufacturing Method Thereof App 20150031849 - Huang; Wen-yao ; et al.	2015-01-29
Electrochemical cell and fuel cell with curable liquid electrolyte App 20040247977 - Holdcroft, Steven ; et al.	2004-12-09
Electrochemical cell and fuel cell with curable perfluoro-sulfonate App 20040247976 - Holdcroft, Steven ; et al.	2004-12-09
Ion-exchange materials with improved ion conductivity Grant 6,765,027 - Holdcroft , et al. July 20, 2	2004-07-20
Ion-exchange materials with improved ion conductivity App 20030078308 - Holdcroft, Steven ; et al.	2003-04-24

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