For the Inventor, By the Inventor

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Houston, TX, United States of America

Westlake Pipe & Fittings Corporation

USPTO Granted Patents = 3

CIPO Patents = 1

Trademarks = 5

Forward Citations = 1

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4 inventors (with patents filed for the assignee):

Joshua E Clapper (3 out of 36 patents)

Dmitry Yashin (2 out of 14 patents)

Roy L Dean (2 out of 2 patents)

4. Andrew Wells (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 12264763 - System for conduit squeeze retainer (2025-04-01),

2. 12203581 - Polymer pipe, a pipe joint insert device, a pipe joint assembly, and methods of forming same (2025-01-21),

3. 12038108 - System, method and apparatus for in-line removable pipe assembly (2024-07-16),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#1,193 in Houston, TX

#4,687 in Texas

#72,023 in US

Houston, TX, United States of America

Westlake Pipe & Fittings Corporation

Forward Citations = 1

4 inventors:

Joshua E Clapper (3 out of 36 patents)

Dmitry Yashin (2 out of 14 patents)

Roy L Dean (2 out of 2 patents)

4. Andrew Wells (1 out of 1 patent)

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