For the Inventor, By the Inventor

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Wixom, MI, United States of America

Durr Environmental, Inc.

USPTO Granted Patents = 14

% Expired Patents = 7.1

Forward Citations = 106

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15 inventors (with patents filed for the assignee):

Joseph M Klobucar (8 out of 28 patents)

Ajay Gupta (3 out of 3 patents)

Michael R Lutz (2 out of 2 patents)

4. Donald I McAnespie (1 out of 4 patents)

5. Sunjung Ahn (1 out of 1 patent)

6. Jason T Schroeder (1 out of 1 patent)

7. Jerry Wayne Noble (1 out of 1 patent)

8. Cary P Allen (1 out of 1 patent)

9. Richard Garvey (1 out of 2 patents)

10. Robert W Cox (1 out of 28 patents)

11. Frank Hussey (1 out of 1 patent)

12. Matthias Stegmueller (1 out of 1 patent)

13. Dana Wregglesworth (1 out of 1 patent)

14. Frank W Fenbert (1 out of 1 patent)

15. Dinesh Bhushan (1 out of 2 patents)

14 patents: Sort by Forward Citations

1. 6974318 - Online bakeout of regenerative oxidizers (2005-12-13),

2. 6579379 - Method of washing the media bed of a pollution abatement reactor (2003-06-17),

3. 6361253 - Method of forming a fire break in a duct (2002-03-26),

4. 6322356 - Pollution abatement reactor system having nonprismatic structured media (2001-11-27),

5. 6299847 - Ammonia catalytic abatement apparatus and method (2001-10-09),

6. 6294000 - Rotary concentrator and method of processing adsorbable pollutants (2001-09-25),

7. 6293735 - Apparatus for cleaning a duct (2001-09-25),

8. 6228329 - Two chamber regenerative thermal or catalytic oxidizer with purging circuit (2001-05-08),

9. 6164962 - Rapid cooling down method for regenerative thermal oxidizer (2000-12-26),

10. 6019940 - Method of processing industrial air stream for medical sterilizers (2000-02-01),

11. 6019902 - Fluid recovery system (2000-02-01),

12. 5925323 - Concentration averaging device for impurities in industrial air stream (1999-07-20),

13. 5891219 - Two stage rotary concentrator (1999-04-06),

14. 5730945 - Purge retention chamber incorporated into RTO inlet manifold (1998-03-24),

Durr Environmental, Inc. is a global leader in environmental protection and pollution control solutions. With innovative technologies and comprehensive services, we help industries minimize their environmental footprint and meet regulatory requirements. We offer a wide range of products and services including air pollution control systems, filtration systems, and waste water treatment solutions. Our commitment to sustainability and customer satisfaction sets us apart in the industry.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

14 Patents

#15 in Wixom, MI

#788 in Michigan

#22,289 in US

#42,168 in the World

Wixom, MI, United States of America

Durr Environmental, Inc.

Forward Citations = 106

15 inventors:

Joseph M Klobucar (8 out of 28 patents)

Ajay Gupta (3 out of 3 patents)

Michael R Lutz (2 out of 2 patents)

4. Donald I McAnespie (1 out of 4 patents)

5. Sunjung Ahn (1 out of 1 patent)

Please report any incorrect information to [email protected]

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