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For the Inventor, By the Inventor

Industry, CA, United States of America

Townsteel, Inc.

Calculating rank
USPTO Granted Patents = 18

Trademarks = 1

Forward Citations = 174

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6 inventors (with patents filed for the assignee):

goldMedal Charles W Moon (16 out of 32 patents)

silverMedal Sybor Ma (6 out of 6 patents)

bronzeMedal Michael J Wright (6 out of 12 patents)

4.  Chad P Moon (3 out of 3 patents)

5.  Yongping Du (1 out of 1 patent)

6.  Ernst Kern Mitchell (1 out of 15 patents)


18 patents:

1. 12680339 - Mortise lock resistant to blunt force attacks (2026-07-14),
2. 12345074 - State monitoring lockset (2025-07-01),
3. 12320149 - Lockset with sliding spindle (2025-06-03),
4. 11124992 - Sliding actuator assembly for a latchset (2021-09-21),
5. 11120657 - Integrated lock management and smart device control system (2021-09-14),
6. 10890020 - Double latch lockset (2021-01-12),
7. 10604963 - Motorized lock and trim assembly (2020-03-31),
8. 10400477 - Electronic deadbolt (2019-09-03),
9. 10260253 - Door trim assembly with clutch mechanism (2019-04-16),
10. 9732542 - Retractor assembly for a cylindrical lockset (2017-08-15),
11. 9528300 - Cylindrical lockset (2016-12-27),
12. 9394722 - Attack-thwarting cylindrical lockset (2016-07-19),
13. 9033375 - Anti-ligature lockset (2015-05-19),
14. 8844330 - Cylindrical lockset (2014-09-30),
15. 8424935 - Mortise lock assembly (2013-04-23),
Company Overview
Townsteel, Inc. is a prominent manufacturer specializing in high-quality architectural hardware and security solutions. Based in Industry, California, the company focuses on developing innovative products that enhance safety and accessibility in various environments, including commercial and institutional settings. Townsteel's expertise encompasses a range of hardware solutions, including door locks, exit devices, and access control systems, catering to the evolving needs of the construction and security industries.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

18 Patents

#25 in Industry, CA

#4,295 in California

#17,980 in US

#34,263 in the World

Industry, CA (US)
Industry, CA, United States of America

Townsteel, Inc.

Forward Citations = 174

6 inventors:

goldMedal Charles W Moon (16 out of 32 patents)

silverMedal Sybor Ma (6 out of 6 patents)

bronzeMedal Michael J Wright (6 out of 12 patents)

4.  Chad P Moon (3 out of 3 patents)

5.  Yongping Du (1 out of 1 patent)

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

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]
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