% Expired Patents = 36.4

Trademarks = 3

Forward Citations = 305

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4 inventors (with patents filed for the assignee):

Charles E Tharp (21 out of 35 patents)

Randall C Chann (3 out of 6 patents)

Peter Riddell (2 out of 2 patents)

4. Clark M Campbell (1 out of 1 patent)

22 patents: Sort by Forward Citations

1. 8061689 - Disk diffuser with improved seal (2011-11-22),

2. 8016272 - Retrievable diffuser module with truss construction (2011-09-13),

3. 8011643 - Diffuser assembly with buoyancy vessel (2011-09-06),

4. 7934704 - Retrievable diffuser module with internal ballast/buoyancy chamber (2011-05-03),

5. 7815974 - Gas diffuser membrane with coated substrate (2010-10-19),

6. 7713415 - Method and apparatus for enhancing aquatic environments (2010-05-11),

7. 7544286 - Method and apparatus for enhancing aquatic environments (2009-06-09),

8. 7044453 - Membrane diffuser with uniform gas distribution (2006-05-16),

9. 7041219 - Method and apparatus for enhancing wastewater treatment in lagoons (2006-05-09),

10. 6863810 - Wastewater aeration system with lift out lateral pipes and diffusers (2005-03-08),

11. 6770200 - Method and apparatus for enhancing wastewater treatment in lagoons (2004-08-03),

12. 6543753 - Air diffuser membrane treated with biocide (2003-04-08),

13. 6497402 - Diffuser mounting system for aeration of liquids (2002-12-24),

14. 5846412 - Diffuser construction and mounting arrangement (1998-12-08),

15. 5788847 - Diffuser construction and mounting arrangement (1998-08-04),

Company Overview

Environmental Dynamics, Inc. is a company based in Columbia, Missouri, specializing in innovative solutions for environmental management and sustainability. The organization focuses on developing advanced technologies and systems that enhance water quality, promote ecological balance, and support effective waste management practices. With a commitment to research and development, Environmental Dynamics aims to address pressing environmental challenges through its expertise in engineering and environmental science.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

22 Patents

#8 in Columbia, MO

#219 in Missouri

#15,037 in US

#28,782 in the World

Columbia, MO, United States of America

Environmental Dynamics, Inc.

Forward Citations = 305

4 inventors:

Charles E Tharp (21 out of 35 patents)

Randall C Chann (3 out of 6 patents)

Peter Riddell (2 out of 2 patents)

4. Clark M Campbell (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Environmental Dynamics, Inc.. Retrieved from https://idiyas.com/company/environmental-dynamics

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]