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Inventor

Joseph L. Welch

Inventor
Jenks, OK, US

Overview

3→
Patents
1991–1996
Patent span
Performing operations
Primary field (CPC B)

Patents· 3 as inventor

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

F16Lprimary
F16LPipes40%
B23QDetails, components, or accessories for machine tools, e.g. arrangements for copying or controlling20%
B29CShaping or joining of plastics20%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%
PatentTitleYear
5,577,776'Tee fitting for lined pipe'19965,505,811'Sidewall applicator for heat fusion of a fitting to a plastic pipe'19965,005,633'Lens blocking apparatus'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991Patents assigned to COBURN OPTICAL IND A DIVISION (1)· patent assignee history
1991–1996Based in Jenks, OK, US· patent location history
1996Patents assigned to TDW DELAWARE INC (1)· patent assignee history
1996Patents assigned to TDW DELEWARE INC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
COBURN OPTICAL IND A DIVISION11991
TDW DELAWARE INC11996
TDW DELEWARE INC11996
Locations
LocationPatentsSpan
Jenks, OK, US31991–1996