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Inventor

Harry C. Nagel

Inventor
Murrysville, PA, US

Overview

4→
Patents
1979–1988
Patent span
Performing operations
Primary field (CPC B)

Patents· 4 as inventor

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

B61Lprimary
B61LGuiding railway traffic75%
H03FAmplifiers25%
PatentTitleYear
4,755,692'Vital safety monitoring circuit'19884,619,425'Pulse code system for railroad track circuits'19864,301,490'Electronic overload protection circuit'19814,171,788'Power transfer apparatus for railroad track circuits'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979Patents assigned to WESTINGHOUSE AIR BRAKE CO (1)· patent assignee history
1979–1986Based in Murrysville, PA, US· patent location history
1981–1988Patents assigned to AMERICAN STANDARD INC (3)· patent assignee history
1988Based in Shaler Township, Allegheny County, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
AMERICAN STANDARD INC31981–1988
WESTINGHOUSE AIR BRAKE CO11979
Locations
LocationPatentsSpan
Murrysville, Pennsylvania, US31979–1986
Shaler Township, Allegheny County, Pennsylvania, US11988