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Inventor

David C. Heffner

Inventor
Williamsfield, OH, US

Overview

2→
Patents
1993–2002
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 2 as inventor

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

B08Bprimary
B08BCleaning in general17%
E04BGeneral building constructions17%
E04GScaffolding17%
E04HBuildings or like structures for particular purposes17%
H01RElectrically-conductive connections17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
PatentTitleYear
6,383,033'Side load electrical connector'20025,201,152'Containment device for contaminated building demolition'1993

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1993Patents assigned to BABCOCK & WILCOX CO (1)· patent assignee history
1993Based in Youngstown, OH, US· patent location history
2002Patents assigned to DELPHI TECH INC (1)· patent assignee history
2002Based in Williamsfield, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BABCOCK & WILCOX CO11993
DELPHI TECH INC12002
Locations
LocationPatentsSpan
Williamsfield, OH, US12002
Youngstown, OH, US11993