Ketjen Limited Liability Company

Calculating rank

USPTO Granted Patents = 5

EPO Patents = 3

Trademarks = 6

Forward Citations = 1

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15 inventors (with patents filed for the assignee):

Eswaramoorthi Iyyamperumal (4 out of 6 patents)

Amir Sabahi (3 out of 5 patents)

Andrew J Loebl (3 out of 5 patents)

4. Julie Francis (3 out of 3 patents)

5. Sandra Gavalda (2 out of 5 patents)

6. Edward Lee Foster (1 out of 2 patents)

7. Kevin Alfonso Miller (1 out of 2 patents)

8. Min Li (1 out of 3 patents)

9. Andrea Marcinkova (1 out of 2 patents)

10. Darrell Ray Rainer (1 out of 1 patent)

11. Maria Margaret Ludvig (1 out of 1 patent)

12. William Knowles (1 out of 1 patent)

13. Nataly G Vargas (1 out of 1 patent)

14. George Yaluris (1 out of 1 patent)

15. Nataly Garcia Vargas (1 patent)

5 patents: Sort by Forward Citations

1. 12758952 - Essentially clay free FCC catalyst with increased contaminant resistivity, its preparation and use (2026-10-13),

2. 12083501 - FCC catalyst prepared by a process involving more than one silica material (2024-09-10),

3. 11975309 - FCC catalyst with enhanced mesoporosity, its preparation and use (2024-05-07),

4. 11964256 - FCC catalyst additive with mixed alumina (2024-04-23),

5. 11926796 - FCC catalyst with more than one silica, its preparation and use (2024-03-12),

Company Overview

Ketjen Limited Liability Company is a leading chemical manufacturer specializing in catalysts and chemical technology solutions. With over 100 years of experience, we provide innovative products for a wide range of industries including petrochemical, automotive, and pharmaceutical. Our commitment to research and development ensures that our customers receive high-quality and efficient solutions tailored to their specific needs.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

5 Patents

#844 in Houston, TX

#3,334 in Texas

#51,669 in US

Houston, TX, United States of America

Ketjen Limited Liability Company

Forward Citations = 1

15 inventors:

Eswaramoorthi Iyyamperumal (4 out of 6 patents)

Amir Sabahi (3 out of 5 patents)

Andrew J Loebl (3 out of 5 patents)

4. Julie Francis (3 out of 3 patents)

5. Sandra Gavalda (2 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ketjen Limited Liability Company. Retrieved from https://idiyas.com/company/ketjen-liability-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]

3 patents (EPO):

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]