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Trademarks = 9

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),

WRT INTERNATIONAL LLC is a global manufacturing and distribution company specializing in innovative and high-quality cleaning and maintenance products for industrial and commercial sectors. With a diverse portfolio of solutions, we aim to provide sustainable cleaning solutions that enhance productivity and reduce environmental impact. Our extensive range of products includes industrial equipment, cleaning chemicals, and accessories, all designed to meet the specific needs and standards of our customers. With a strong commitment to research and development, we continually strive to improve our offerings and remain at the forefront of the industry. Visit our website to learn more about our products and how we can assist in your cleaning and maintenance requirements.

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Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

12 Patents

#8 in Arvada, CO

#509 in Colorado

#24,788 in US

#46,685 in the World

Arvada, CO, United States of America

Wrt International LLC