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For the Inventor, By the Inventor

Richmond, VA, United States of America

Infilco Degremont, Inc.


USPTO Granted Patents = 41

% Expired Patents = 7.3



Trademarks = 14

Forward Citations = 488

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55 inventors (with patents filed for the assignee):

goldMedal Peter E Schuerch (5 out of 23 patents)

silverMedal Richard K Weltz (5 out of 5 patents)

bronzeMedal Ky Dangtran (3 out of 3 patents)

4.  Robert Kelly (3 out of 3 patents)

5.  Joseph Edward Zuback (3 out of 28 patents)

6.  William R Nichols (3 out of 3 patents)

7.  Paris Neofotistos (2 out of 3 patents)

8.  Antonio Lau (2 out of 3 patents)

9.  Michael L Pudvay (2 out of 2 patents)

10.  John D Dyson (2 out of 2 patents)

11.  Ronald C Maness (2 out of 2 patents)

12.  Peter E Kanow (2 out of 2 patents)

13.  James Kallio (2 out of 2 patents)

14.  Stephen P Angelino (2 out of 2 patents)

15.  Louis H Piper (2 out of 4 patents)


Core Competencies:
Denitrification System
Sludge Incineration
Water Purification
UV Disinfection
Filtration System
Biological Treatment
Ozone Generator
Liquid Clarification
Dissolved Gas Stripping
Automatic Backwash Filters
Disinfection By-Products
Turbidity Monitoring

41 patents:

1. 9969635 - Downflow denitrification system (2018-05-15),
2. 9291347 - Methods for incinerating sludge in a combustor (2016-03-22),
3. 9255022 - Biological-chemical treatment of liquid organic wastewater (2016-02-09),
4. 9126852 - Mobile system for treatment of water by deionization (2015-09-08),
5. 8808547 - Apparatus and processes for removing boron from liquids (2014-08-19),
6. 8291842 - Methods for incinerating sludge in a combustor (2012-10-23),
7. 7985576 - Methods and systems for biological treatment of flue gas desulfurization wastewater (2011-07-26),
8. 7097764 - Apparatus for irradiating fluids with UV (2006-08-29),
9. 7090771 - Filtration system underdrain (2006-08-15),
10. 7048852 - Method and apparatus for treating water or wastewater to reduce organic and hardness contamination (2006-05-23),
11. 6620318 - Modular disinfection system for fluids (2003-09-16),
12. 6383370 - Apparatus for treating wastewater (2002-05-07),
13. 6375909 - Method for the removal of mercury and nitrogen oxides from combustion flue gas (2002-04-23),
14. 5952663 - Apparatus for improving UV dosage applied to fluids in open channel UV (1999-09-14),
15. 5618421 - Underdrain filter plate installations in automatic backwash filter (1997-04-08),
Company Overview
Infilco Degremont, Inc., based in Richmond, VA, specializes in advanced water treatment technologies. The company focuses on developing solutions for denitrification systems, sludge incineration, and biological treatment processes. Their expertise extends to water deionization, boron removal, UV irradiation, fluid disinfection, and mercury removal, addressing critical environmental challenges. Infilco Degremont is committed to enhancing water quality and sustainability through innovative engineering and technology solutions tailored for diverse applications.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

41 Patents

#18 in Richmond, VA

#144 in Virginia

#8,447 in US

#16,725 in the World

Richmond, VA (US)
Richmond, VA, United States of America

Infilco Degremont, Inc.

Forward Citations = 488

55 inventors:

goldMedal Peter E Schuerch (5 out of 23 patents)

silverMedal Richard K Weltz (5 out of 5 patents)

bronzeMedal Ky Dangtran (3 out of 3 patents)

4.  Robert Kelly (3 out of 3 patents)

5.  Joseph Edward Zuback (3 out of 28 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Infilco Degremont, Inc.. Retrieved from https://idiyas.com/company/infilco-degremont

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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