Forward Citations = 684

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3 inventors (with patents filed for the assignee):

Tyrell T Gilb (24 out of 47 patents)

Alfred D Commins (1 out of 41 patents)

Raymond E Clarkson (1 out of 1 patent)

24 patents: Sort by Forward Citations

1. 4367973 - Structural strap tie (1983-01-11),

2. 4353664 - Free gusset metal ledger hanger (1982-10-12),

3. D260964 - Connector for wood members (1981-09-29),

4. 4291996 - Positive nail angling device for metal connectors (1981-09-29),

5. D259242 - Connector for wood members (1981-05-19),

6. 4261155 - Infinite skewed hanger (1981-04-14),

7. 4230416 - Restricted slot nail openings for sheet metal framing connectors (1980-10-28),

8. D256663 - Post and beam connector (1980-09-02),

9. D254476 - Architectural post base (1980-03-18),

10. 4192118 - Holdown for attaching wood framing members to concrete foundations (1980-03-11),

11. 4106257 - Composite truss bearing clip (1978-08-15),

12. 4104843 - Hanger adjustable end bearing assembly (1978-08-08),

13. D248275 - Joist hanger (1978-06-27),

14. 4096677 - Post base (1978-06-27),

15. 4094116 - Web tube with separated end walls (1978-06-13),

Company Overview

Simpson Manufacturing Co., Inc. is a leading provider of construction products and solutions, specializing in structural connectors, fasteners, and related products. The company is dedicated to enhancing the safety and performance of structures through innovative engineering and design. With a strong focus on research and development, Simpson Manufacturing operates primarily in the construction and building materials sector, serving a diverse range of customers across various geographic regions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

24 Patents

#10 in San Leandro, CA

#3,287 in California

#13,884 in US

#26,660 in the World

San Leandro, CA, United States of America

Simpson Manufacturing Co., Inc.

Forward Citations = 684

3 inventors:

Tyrell T Gilb (24 out of 47 patents)

Alfred D Commins (1 out of 41 patents)

Raymond E Clarkson (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Simpson Manufacturing Co., Inc.. Retrieved from https://idiyas.com/company/simpson-manufacturing-company

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]