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Washington, DC, United States of America

The United States of America As Represented by the Administrator of the U.S. Environmental Protection Agency

USPTO Granted Patents = 133

CIPO Patents = 1

Forward Citations = 2,128

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140 inventors (with patents filed for the assignee):

Charles L Gray, Jr (73 out of 82 patents)

David James Haugen (9 out of 9 patents)

Rajender S Varma (7 out of 10 patents)

4. Subhas K Sikdar (5 out of 14 patents)

5. Matthew J Brusstar (5 out of 5 patents)

6. Daniel W Barba (5 out of 5 patents)

7. Mallikarjuna N Nadagouda (3 out of 5 patents)

8. Pratim Biswas (3 out of 18 patents)

9. David H Read (3 out of 3 patents)

10. Endalkachew Sahle-Demessie (3 out of 4 patents)

11. Claude Kennard (3 out of 3 patents)

12. Michael A Gonzalez (3 out of 3 patents)

13. David C Szlag (3 out of 3 patents)

14. Kristen P Brenner (3 out of 4 patents)

15. Clifford C Rankin (3 out of 4 patents)

Core Competencies:

Fluorinated Organic Chemicals

Biological Ammonia Oxidation

Hydraulic Hybrid Vehicles

Photocatalytic Oxidation

Regenerative Energy Storage

Hydraulic Circuit Design

Low Emission Engines

Gas Concentration Techniques

Optical Remote Sensing

Catalytic Water Splitting

Aerosol Particle Deposition

Elastomeric Asymmetric Membranes

133 patents: Sort by Forward Citations

1. 11400438 - Synthesis and immobilization of a ferrous sulfite catalyst and method of degrading fluorinated organic chemicals in aqueous media (2022-08-02),

2. 11255783 - Systems and processes for early detection of biological ammonia oxidation in water using fluorometry (2022-02-22),

3. 10316506 - Detain H2O—detention pond retrofit device (2019-06-11),

4. 10290089 - Cyanobacteria assessment network (2019-05-14),

5. 10189708 - Ruthenium on chitosan (ChRu): concerted catalysis for water splitting and reduction (2019-01-29),

6. 9586814 - Solid state amperometric chloramine sensor (2017-03-07),

7. 9541432 - Flow imaging and monitoring for synchronized management of wide area drainage (2017-01-10),

8. 9346347 - Methods for safe operation of hydraulic hybrid vehicles with over-center pump/motors (2016-05-24),

9. 9285354 - Systems and methods for the detection of low-level harmful substances in a large volume of fluid (2016-03-15),

10. 9266803 - Liquid separation by membrane assisted vapor stripping process (2016-02-23),

11. 9121395 - Method for assembling a bent-axis pump/motor (2015-09-01),

12. 9032723 - Hydraulic hybrid vehicle with safe and efficient hydrostatic operation (2015-05-19),

13. 9014940 - Hybrid vehicle control methods (2015-04-21),

14. 8985089 - Low temperature dual fuel combustion utilizing diesel and methanol fuels (2015-03-24),

15. 8893491 - Modular hydraulic hybrid drivetrain (2014-11-25),

The United States of America As Represented by the Administrator of the U.S. Environmental Protection Agency works to protect human health and the environment. They focus on enforcing regulations, conducting research, and educating the public on environmental issues. Visit their website for more information on their initiatives and programs.

This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 2 2025

133 Patents

#11 in Washington, DC

#11 in District of Columbia

#2,799 in US

#5,880 in the World

Washington, DC, United States of America

The United States of America As Represented by the Administrator of the U.S. Environmental Protection Agency

Forward Citations = 2,128

140 inventors:

Charles L Gray, Jr (73 out of 82 patents)

David James Haugen (9 out of 9 patents)

Rajender S Varma (7 out of 10 patents)

4. Subhas K Sikdar (5 out of 14 patents)

5. Matthew J Brusstar (5 out of 5 patents)

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