Inventor

Bruce A. Hehn

Inventor
Massillon, OH, US

Overview

19→
Patents
1978–1993
Patent span
Physics
Primary field (CPC G)

Patents· 19 as inventor

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

G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer37%
E05BLocks19%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
Y10TTechnical subjects covered by former us classification11%
A01KAnimal husbandry4%
A47DFurniture specially adapted for children4%
A47GHousehold or table equipment4%
B42FSheets temporarily attached together4%
D05CEmbroidering4%
LOCD04%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978Patents assigned to HEHN BRUCE (1)· patent assignee history
1978–1983Based in St. Clairsville, OH, US· patent location history
1980–1993Patents assigned to HEHN BRUCE A (3)· patent assignee history
1983–1991Patents assigned to ALPHA ENTPR INC (2)· patent assignee history
1984–1991Patents assigned to ALPHA ENTERPRISES INC (13)· patent assignee history
1984–1986Based in North Canton, OH, US· patent location history
1987–1993Based in Massillon, OH, US· patent location history
1988Based in Canton, OH, US· patent location history
1989Based in Mass, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
ALPHA ENTERPRISES INC131984–1991
HEHN BRUCE Aself31980–1993
ALPHA ENTPR INC21983–1991
HEHN BRUCEself11978
Locations
LocationPatentsSpan
Massillon, OH, US111987–1993
North Canton, OH, US31984–1986
St. Clairsville, OH, US31978–1983
Mass, OH, US11989
Canton, OH, US11988