% Expired Patents = 20.0

Trademarks = 3

Forward Citations = 107

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8 inventors (with patents filed for the assignee):

Curtis C Shoup (2 out of 4 patents)

James Michael Richardson (2 out of 2 patents)

David P Williams (2 out of 2 patents)

4. Ali R Salehi (2 out of 2 patents)

5. Harry M Riegelman (2 out of 2 patents)

6. James E Baumgarten (1 out of 1 patent)

7. Daniel H Meggs (1 out of 11 patents)

8. Janos Beny (1 out of 13 patents)

10 patents: Sort by Forward Citations

1. 7121004 - Method of fabricating security door (2006-10-17),

2. 6585314 - Tablet arm attachment for folding chair having ganging feature (2003-07-01),

3. 6478375 - Metal folding chair having ganging device (2002-11-12),

4. 5979137 - Security door (1999-11-09),

5. 5961181 - Classroom chair having bookbag hook (1999-10-05),

6. 5836646 - Classroom chair having bookbag hook (1998-11-17),

7. 4899493 - Replaceable sliding door roller assembly (1990-02-13),

8. 4873741 - Sliding door roller apparatus (1989-10-17),

9. D300364 - Screen door (1989-03-21),

10. 3990183 - Sliding door assembly (1976-11-09),

Company Overview

Columbia Manufacturing Corp. is a prominent player in the manufacturing sector, specializing in the production of high-quality industrial equipment and components. Based in Gardena, California, the company focuses on delivering innovative solutions tailored to meet the needs of various industries, including automotive and aerospace. With a commitment to excellence, Columbia Manufacturing leverages advanced technology and engineering expertise to enhance operational efficiency and product reliability, positioning itself as a trusted partner in the manufacturing landscape.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

10 Patents

#20 in Gardena, CA

#7,108 in California

#29,839 in US

#55,986 in the World

Gardena, CA, United States of America

Columbia Manufacturing Corp.

Forward Citations = 107

8 inventors:

Curtis C Shoup (2 out of 4 patents)

James Michael Richardson (2 out of 2 patents)

David P Williams (2 out of 2 patents)

4. Ali R Salehi (2 out of 2 patents)

5. Harry M Riegelman (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Columbia Manufacturing Corp.. Retrieved from https://idiyas.com/company/columbia-manufacturing

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]