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Trademarks = 3

Forward Citations = 105

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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),

Columbia Manufacturing Corp. is a leading manufacturer of industrial equipment, specializing in custom metal fabrication and machining services. With over 50 years of experience, we provide high-quality products and solutions for a wide range of industries, including automotive, aerospace, and defense. Our team of skilled engineers and technicians are committed to delivering innovative and cost-effective solutions to meet our customers' needs.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

10 Patents

#18 in Gardena, CA

#6,896 in California

#29,000 in US

#54,316 in the World

Gardena, CA, United States of America

Columbia Manufacturing Corp.