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Lawrenceville, NJ, United States of America

Envirogen, Inc.

USPTO Granted Patents = 20

% Expired Patents = 10.0

Forward Citations = 247

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20 inventors (with patents filed for the assignee):

Robert Jon Steffan (6 out of 9 patents)

Michael Arthur Del Vecchio (5 out of 6 patents)

Paul Matthew Sutton (3 out of 5 patents)

4. Robert Eben Loudon (3 out of 5 patents)

5. Kevin Rock McClay (3 out of 5 patents)

6. Mary F DeFlaun (3 out of 3 patents)

7. Burt D Ensley (2 out of 18 patents)

8. Charles Whitman Condee (2 out of 3 patents)

9. Jennifer Diane Michelson (2 out of 2 patents)

10. Ronald Unterman (2 out of 2 patents)

11. Randi K Rothmel (2 out of 2 patents)

12. Dennis Wayne Barshter (2 out of 2 patents)

13. Sam Frisch (2 out of 2 patents)

14. Samuel Frisch (1 out of 10 patents)

15. Younghua Yang (1 out of 1 patent)

20 patents: Sort by Forward Citations

1. 6878282 - System and method for withdrawing permeate through a filter and for cleaning the filter in situ (2005-04-12),

2. 6830922 - System and method for inoculating a biological reactor (2004-12-14),

3. 6706521 - Bed cleaning system for fluidized-bed bioreactors (2004-03-16),

4. 6627082 - System and method for withdrawing permeate through a filter and for cleaning the filter in situ (2003-09-30),

5. 6524842 - Biodegradation of gasoline oxygenates (2003-02-25),

6. 6331251 - System and method for withdrawing permeate through a filter and for cleaning the filter in situ (2001-12-18),

7. 6303366 - Biodegradation of the gasoline oxygenates (2001-10-16),

8. 5958757 - Biological conversion of organic compounds (1999-09-28),

9. 5861303 - Biofiltration apparatus and method with chemical pre-treatment of (1999-01-19),

10. 5821114 - Biofilter with modular panels and method of using the same (1998-10-13),

11. 5814514 - Biodegradation of the gasoline oxygenates (1998-09-29),

12. 5788842 - Biomass separation apparatus and method (1998-08-04),

13. 5750028 - Biomass separation apparatus and method with media return (1998-05-12),

14. 5567324 - Method of biodegrading hydrophobic organic compounds (1996-10-22),

15. 5516688 - Method of biodegrading hydrophobic organic compounds, particularly PCBS, (1996-05-14),

Company Overview

Envirogen, Inc. is a technology-driven company based in Lawrenceville, NJ, specializing in advanced environmental solutions. The organization focuses on developing innovative technologies for water and air treatment, emphasizing sustainability and efficiency. With expertise in bioremediation and filtration systems, Envirogen aims to address complex environmental challenges while promoting ecological health. The company's commitment to research and development positions it as a leader in the environmental technology sector, catering to diverse industries and regulatory needs.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

20 Patents

#9 in Lawrenceville, NJ

#619 in New Jersey

#16,409 in US

#31,295 in the World

Lawrenceville, NJ, United States of America

Envirogen, Inc.

Forward Citations = 247

20 inventors:

Robert Jon Steffan (6 out of 9 patents)

Michael Arthur Del Vecchio (5 out of 6 patents)

Paul Matthew Sutton (3 out of 5 patents)

4. Robert Eben Loudon (3 out of 5 patents)

5. Kevin Rock McClay (3 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Envirogen, Inc.. Retrieved from https://idiyas.com/company/envirogen

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]

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