Forward Citations = 34

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3 inventors (with patents filed for the assignee):

Frank E Rizzo (1 out of 2 patents)

David C Katz (1 out of 1 patent)

Leslie G Colter, Jr (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 5728943 - Method and system for detection and prevention of stress corrosion (1998-03-17),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

1 Patents

#675 in Salt Lake City, UT

#1,924 in Utah

#136,844 in US

Salt Lake City, UT, United States of America

Northwest Pipeline Corporation

Forward Citations = 34

3 inventors:

Frank E Rizzo (1 out of 2 patents)

David C Katz (1 out of 1 patent)

Leslie G Colter, Jr (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Northwest Pipeline Corporation. Retrieved from https://idiyas.com/company/northwest-pipeline

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]