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Inventor

John M. Redfield

Inventor
Brier, WA, US

Overview

17→
Patents
1988–2010
Patent span
Electricity
Primary field (CPC H)

Patents· 17 as inventor

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

H01Rprimary
H01RElectrically-conductive connections45%
H05KPrinted circuits14%
LOC1314%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
G01KMeasuring temperature5%
G02BOptical elements, systems or apparatus5%
H04QSelecting5%
Y10TTechnical subjects covered by former us classification5%
PatentTitleYear
RE041699'Electrical connector jack'20107,300,308'Patch panel'2007D0554598'Patch panel'20077,278,879'Connector isolation station system'20077,273,396'Connector isolation shielding system and method'2007D0542240'Patch panel'20077,140,924'Compensation system and method for negative capacitive coupling in IDC'2006D0511325'Back end portion of an electrical connector jack'20056,786,776'Electrical connector jack'20046,641,443'Electrical connector jack'20036,379,157'Communication connector with inductive compensation'20025,290,175'Modular higher density communications coupling system'1994D0332575'Electronic test set for telecommunications, alarm system, and circuit testing'19935,106,325'Modular higher density communications coupling system'19925,007,860'Modular higher density communications coupling system'19914,830,922'Removable controlled thickness conformal coating'19894,718,777'Isothermal block for temperature measurement system using a thermocouple'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to FLUKE MFG CO JOHN (1)· patent assignee history
1988–1989Based in Seattle, WA, US· patent location history
1989Patents assigned to REDFIELD JR JOHN M (1)· patent assignee history
1989Patents assigned to SPARROWHAWK BRYAN L (1)· patent assignee history
1991–2010Patents assigned to LEVITON MANUFACTURING CO (14)· patent assignee history
1991–2010Based in Brier, WA, US· patent location history
1993Patents assigned to LEVITON MFG CORPORATION (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LEVITON MANUFACTURING CO141991–2010
FLUKE MFG CO JOHN11988
LEVITON MFG CORPORATION11993
REDFIELD JR JOHN Mself11989
SPARROWHAWK BRYAN L11989
Locations
LocationPatentsSpan
Brier, Washington, US151991–2010
Seattle, Washington, US21988–1989