For the Inventor, By the Inventor

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Winston-Salem, NC, United States of America

Liberty Hardware Manufacturing Corp.

USPTO Granted Patents = 2

EPO Patents = 1

Trademarks = 3

Forward Citations = 17

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4 inventors (with patents filed for the assignee):

Jian Xu (1 out of 11 patents)

Thomas Alan Barnett (1 out of 5 patents)

Jeffrey Iott (1 out of 5 patents)

4. John Papsdorf (1 out of 3 patents)

2 patents: Sort by Forward Citations

1. 7969100 - Bulb type detector for dimmer circuit and inventive resistance and short circuit detection (2011-06-28),

2. 4379360 - Method of making a hinge with an integral pintle (1983-04-12),

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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#76 in Winston-Salem, NC

#1,996 in North Carolina

#92,551 in US

Winston-Salem, NC, United States of America

Liberty Hardware Manufacturing Corp.

Forward Citations = 17

4 inventors:

Jian Xu (1 out of 11 patents)

Thomas Alan Barnett (1 out of 5 patents)

Jeffrey Iott (1 out of 5 patents)

4. John Papsdorf (1 out of 3 patents)

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