% Expired Patents = 37.5

Forward Citations = 125

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5 inventors (with patents filed for the assignee):

Terrance H Gray (6 out of 11 patents)

Kristen K Hedstrom (4 out of 5 patents)

William V Shaffer (4 out of 11 patents)

4. Claude Nail (1 out of 1 patent)

5. Francois Buron (1 out of 1 patent)

8 patents: Sort by Forward Citations

1. 8002497 - Coupler for leaching chamber systems (2011-08-23),

2. D595821 - Heat pump for swimming pools (2009-07-07),

3. 7413382 - Coupler for leaching chamber systems (2008-08-19),

4. 7261149 - Heat exchanger with pipe coils and helical spreader ribs (2007-08-28),

5. 7160059 - Adjustable angle coupler for leaching chamber systems (2007-01-09),

6. 6592293 - Adjustable angle coupler for leaching chamber systems (2003-07-15),

7. 6270287 - Leaching chamber (2001-08-07),

8. 6076993 - Leaching chamber (2000-06-20),

Company Overview

PSA, Inc. is a leading provider of innovative business solutions for organizations of all sizes. With a focus on quality, reliability, and customer satisfaction, PSA offers a wide range of services including IT consulting, software development, and project management. Our team of experienced professionals is dedicated to delivering customized solutions that meet the unique needs of each client. Contact us today to see how PSA can help your business thrive.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

8 Patents

#7 in Hilliard, OH

#1,438 in Ohio

#35,893 in US

Hilliard, OH, United States of America

Psa, Inc.

Forward Citations = 125

5 inventors:

Terrance H Gray (6 out of 11 patents)

Kristen K Hedstrom (4 out of 5 patents)

William V Shaffer (4 out of 11 patents)

4. Claude Nail (1 out of 1 patent)

5. Francois Buron (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Psa, Inc.. Retrieved from https://idiyas.com/company/psa

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]