% Expired Patents = 8.3

Trademarks = 5

Forward Citations = 79

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5 inventors (with patents filed for the assignee):

Charles S Williams (11 out of 11 patents)

John E Litz (7 out of 13 patents)

Jody Kelso (2 out of 2 patents)

4. David Jones (2 out of 2 patents)

5. Scott E Heffner (2 out of 2 patents)

12 patents: Sort by Forward Citations

1. 10875787 - Radium removal from aqueous media using zeolite materials (2020-12-29),

2. 9908788 - Radium removal from aqueous media using zeolite materials (2018-03-06),

3. 8663479 - Method for removing cationic contaminants from water using natural zeolite underloaded with transition metal ions to limit leakage of intrinsic arsenic therefrom (2014-03-04),

4. 7807057 - Dynamic up-flow zeolite system and method (2010-10-05),

5. 7713424 - Methods for purging absorptive materials used in the removal of contaminates from an aqueous medium (2010-05-11),

6. 7520987 - System and apparatus for purging absorptive materials used in the removal of contaminates from an aqueous medium (2009-04-21),

7. 7476311 - Arsenic removal from aqueous media using chemically treated zeolite materials (2009-01-13),

8. 7390414 - Regeneration of chemically treated zeolite (2008-06-24),

9. 7326348 - Method for removal and destruction of ammonia from an aqueous medium (2008-02-05),

10. 7326347 - Dynamic up-flow zeolite system and method (2008-02-05),

11. 7108784 - Apparatus for removal and destruction of ammonia from an aqueous medium (2006-09-19),

12. 7105087 - Hexa-valent chromium removal from aqueous media using ferrous-form zeolite materials (2006-09-12),

Company Overview

Wrt International LLC, based in Arvada, Colorado, specializes in advanced technologies and solutions for various industries. The company focuses on developing innovative products and services that enhance operational efficiency and performance. With a strong emphasis on research and development, Wrt International engages in cutting-edge projects across multiple domains, including engineering and technology. Their commitment to quality and innovation positions them as a key player in the competitive landscape of technology-driven solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

12 Patents

#8 in Arvada, CO

#536 in Colorado

#25,578 in US

#48,209 in the World

Arvada, CO, United States of America

Wrt International LLC

Forward Citations = 79

5 inventors:

Charles S Williams (11 out of 11 patents)

John E Litz (7 out of 13 patents)

Jody Kelso (2 out of 2 patents)

4. David Jones (2 out of 2 patents)

5. Scott E Heffner (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Wrt International LLC. Retrieved from https://idiyas.com/company/wrt-international

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]