Inventor

John C. Schmidhauser

Inventor
Schenectady, NY, US

Overview

25→
Patents
1991–2021
Patent span
Chemistry
Primary field (CPC C)

Patents· 25 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C08Gprimary
C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds40%
C07CAcyclic or carbocyclic compounds17%
C07DHeterocyclic compounds10%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds10%
C08CTreatment or chemical modification of rubbers5%
B01DSeparation2%
C08LCompositions of macromolecular compounds2%
C09DCoating compositions, e.g. paints, varnishes or lacquers2%
H01GCapacitors2%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy2%
PatentTitleYear
11,133,562Integrated electrode separator assemblies for lithium ion batteries20219,457,315'Fluoropolymer gas separation films'20167,122,610'Method of producing thermoplastic fluoropolymers using alkyl sulfonate surfactants'20067,078,464'Acid salts of amine-functionalized SMA imide resins'20066,864,321'Hydroxyl-terminated polybutadienes and their use in curing formulations'20056,855,776'Amino-terminated polybutadienes'20056,831,136'Amino-terminated polybutadienes'20046,747,097'Hydroxyl-terminated polybutadienes and curing formulations'20046,232,405'SMA resin amic acids'20016,077,977'Method for preparing hydroperoxides by oxygenation'20005,856,421'Polyetherimide preparation method including addition of macrocyclic polyetherimide oligomers'19995,830,974'Method for preparing aromatic polyether polymers'19985,663,275'Preparation of polyether polymers using bisphenol hydrate as intermediate'19975,480,959'Substantially pure bisphenols and polymers comprising bisphenols'1996RE035059'Bis(4-hydroxyphenyl)cycloalkanes'19955,412,048'Process for producing cross-linked monodispersed polymeric particles'19955,344,999'1,3-bis(4-hydroxyphenyl)-1,3-dialkylcyclohexanes and polycarbonates prepared therefrom'19945,319,149'Bis[4\'-(4-hydroxyphenyl)-phenyl]alkanes and polycarbonates prepared therefrom'19945,312,918'Method for preparing substituted nitrogen-heterocyclic compounds'19945,306,832'Heterocyclic bis(4-hydroxyphenyl(cycloalkanes and polycarbonates prepared therefrom'19945,300,622'Polycarbonate from heterocyclic bis(4-hydroxyphenyl)cycloalkane'19945,281,689'Polycarbonate from bis[4\'-(4-hydroxyphenyl)-phenyl]alkanes'19945,281,688'Polycarbonate from 1,3-bis(4-hydroxyphenyl)-1,3-dialkylcyclohexanes'19945,110,897'Thermoplastic polycarbonate composition having improved oxygen barrier properties from diester diol'19925,051,490'Thermoplastic polyarylate compositions having improved oxygen barrier properties'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–2000Patents assigned to GEN ELECTRIC (16)· patent assignee history
1991–1996Based in Schenectady, NY, US· patent location history
1997–1999Based in Niskayuna, NY, US· patent location history
2000Based in Easton, PA, US· patent location history
2001Based in Tredyffrin, PA, US· patent location history
2004–2005Patents assigned to SARTOMER TECHNOLOGY COMPANY IN (2)· patent assignee history
2004–2021Based in Paoli, PA, US· patent location history
2006–2021Patents assigned to ARKEMA INC (3)· patent assignee history
2016Patents assigned to AIRAUD CEDRIC (1)· patent assignee history
2016Patents assigned to AMIN-SANAYEI RAMIN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GEN ELECTRIC161991–2000
ARKEMA INC32006–2021
SARTOMER TECHNOLOGY COMPANY IN22004–2005
AIRAUD CEDRIC12016
AMIN-SANAYEI RAMIN12016
Locations
LocationPatentsSpan
Schenectady, New York, US121991–1996
Paoli, Pennsylvania, US82004–2021
Niskayuna, New York, US31997–1999
Tredyffrin, Pennsylvania, US12001
Easton, Pennsylvania, US12000