Trademarks = 1

Forward Citations = 143

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6 inventors (with patents filed for the assignee):

Raymond E Pechacek (11 out of 13 patents)

Jinyang James Lu (2 out of 3 patents)

Charles Schroeder (2 out of 3 patents)

4. Donald H Bredbeck (2 out of 2 patents)

5. Eugene J Clay (2 out of 2 patents)

6. Henry J Clay (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 6264797 - Method for improving longevity of equipment for opening large, high temperature containers (2001-07-24),

2. 6254733 - Automatic cover removal system (2001-07-03),

3. 5624078 - Method of making crumb rubber (1997-04-29),

4. 5522559 - Rubber crumbing apparatus (1996-06-04),

5. 5221019 - Remotely operable vessel cover positioner (1993-06-22),

6. 4632617 - Method and system for installing a layered vessel on location (1986-12-30),

7. 4538798 - Frame for constructing a hemispherical multi-layered shell (1985-09-03),

8. 4432128 - Method and system for installing a layered vessel on location (1984-02-21),

9. 4418560 - Shell layer wrapping machine and method of positioning vessel sections (1983-12-06),

10. 4403387 - Method of making frame for the construction of hemispherical (1983-09-13),

11. 4398646 - Multi-layered vessel with discontinuity neutralizing area (1983-08-16),

12. 4299332 - Pressure vessel seal (1981-11-10),

13. 4054224 - Vessel assembly (1977-10-18),

14. 4053971 - Wrapping machine for layered vessels (1977-10-18),

15. 4009798 - Vessel connector (1977-03-01),

Company Overview

Hahn & Clay is a Houston-based firm specializing in advanced engineering solutions and innovative technology development. The company focuses on providing high-quality services in sectors such as aerospace, energy, and manufacturing, leveraging cutting-edge research to enhance operational efficiency and product performance. With a commitment to excellence, Hahn & Clay collaborates with clients to deliver tailored solutions that meet the evolving demands of the industry, positioning itself as a leader in engineering and technology innovation.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

15 Patents

#345 in Houston, TX

#1,298 in Texas

#21,052 in US

#39,921 in the World

Houston, TX, United States of America

Hahn & Clay

Forward Citations = 143

6 inventors:

Raymond E Pechacek (11 out of 13 patents)

Jinyang James Lu (2 out of 3 patents)

Charles Schroeder (2 out of 3 patents)

4. Donald H Bredbeck (2 out of 2 patents)

5. Eugene J Clay (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hahn & Clay. Retrieved from https://idiyas.com/company/hahn-and-clay

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]