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Inventor

Bruce A. Clarkson

Inventor
Beverly, MA, US

Overview

6→
Patents
1987–1989
Patent span
Physics
Primary field (CPC G)

Patents· 6 as inventor

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

E05Bprimary
E05BLocks23%
G01MTesting static or dynamic balance of machines or structures23%
G07CTime or attendance registers23%
Y10TTechnical subjects covered by former us classification23%
G08BSignalling systems, e.g. personal calling systems8%
PatentTitleYear
4,855,714'Fluid status detector'19894,848,115'Electronic locking system and key therefor'19894,835,521'Fluid status detector'19894,831,360'Fluid status detector'19894,789,859'Electronic locking system and key therefor'19884,712,398'Electronic locking system and key therefor'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1989Patents assigned to EMHART IND (6)· patent assignee history
1987–1989Based in Beverly, MA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EMHART IND61987–1989
Locations
LocationPatentsSpan
Beverly, Massachusetts, US61987–1989