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Inventor

Lawrence J. Andrews

Inventor
Cheswick, PA, US

Overview

6→
Patents
1995–2017
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 6 as inventor

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

B60Tprimary
B60TVehicle brake control systems or parts thereof24%
F16KValves18%
Y10TTechnical subjects covered by former us classification18%
F15BSystems acting by means of fluids in general12%
B01DSeparation6%
F01KSteam engine plants6%
F16DCouplings for transmitting rotation6%
F16JPistons6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
9,676,380'Universal venting arrangement for a railway vehicle brake cylinder'20178,794,256'Self-sealing check valve'20146,991,236'Device for securing a sealing member in a predetermined position'20066,186,600'Automatic test connector adapter plate for AB pipe bracket'20016,132,483'Filter for railroad car control valve pipe bracket and access plate'20005,450,782'Vibration desensitizing piston wear ring for railroad car control valve'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2001Patents assigned to WESTINGHOUSE AIR BRAKE CO (3)· patent assignee history
1995Based in Elizabeth, PA, US· patent location history
2000–2017Based in Cheswick, PA, US· patent location history
2014Patents assigned to ANDREWS LAWRENCE J (1)· patent assignee history
2014Patents assigned to BOTTI TIMOTHY J (1)· patent assignee history
2014Patents assigned to KERR JEFFREY D (1)· patent assignee history
2017Patents assigned to ANDREWS LAWRENCE JAMES (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
WESTINGHOUSE AIR BRAKE CO31995–2001
ANDREWS LAWRENCE Jself12014
ANDREWS LAWRENCE JAMESself12017
BOTTI TIMOTHY J12014
KERR JEFFREY D12014
Locations
LocationPatentsSpan
Cheswick, Pennsylvania, US52000–2017
Elizabeth, Pennsylvania, US11995