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Inventor

Douglas L. Heydt

Inventor
West Lawn, PA, US

Overview

3→
Patents
1988–2005
Patent span
Textiles
Primary field (CPC D)

Patents· 3 as inventor

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

D04Bprimary
D04BKnitting60%
A44BButtons, pins, buckles, slide fasteners, or the like40%
PatentTitleYear
6,925,841'Closing element assembly for compound needles used in knitting machines'20055,119,643'Connection assembly and composite therefor'19924,739,635'Connector assembly and composite therefor'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1992Patents assigned to HEYDT DOUGLAS L (2)· patent assignee history
1988–1992Based in West Lawn, PA, US· patent location history
1992Patents assigned to CONLEY JAMES P (1)· patent assignee history
1992Patents assigned to COWAN WILLIAM E (1)· patent assignee history
2005Patents assigned to CHIMA INC (1)· patent assignee history
2005Based in Shillington, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HEYDT DOUGLAS Lself21988–1992
CHIMA INC12005
CONLEY JAMES P11992
COWAN WILLIAM E11992
Locations
LocationPatentsSpan
West Lawn, Pennsylvania, US21988–1992
Shillington, Pennsylvania, US12005