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For the Inventor, By the Inventor

Warrendale, PA, United States of America

U.S. Filter Wastewater Group, Inc.

Calculating rank
USPTO Granted Patents = 17

% Expired Patents = 11.8


Trademarks = 6

Forward Citations = 967

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17 inventors (with patents filed for the assignee):

goldMedal Fufang Zha (9 out of 35 patents)

silverMedal Edward John Jordan (4 out of 20 patents)

bronzeMedal David John Cox (4 out of 12 patents)

4.  Warren Thomas Johnson (4 out of 26 patents)

5.  Thomas William Beck (3 out of 46 patents)

6.  Stephen B Wilcher (3 out of 22 patents)

7.  Robert James McMahon (1 out of 22 patents)

8.  Heinz-Joachim Muller (1 out of 9 patents)

9.  Joachim Muller (1 out of 7 patents)

10.  Cinzia Lea (1 out of 3 patents)

11.  Georg Schnieder (1 out of 13 patents)

12.  Tom Rainier (1 out of 1 patent)

13.  Aaron J Balczewski (1 out of 1 patent)

14.  Daniel A Cargnel (1 out of 1 patent)

15.  Paul Martin Gallagher (1 out of 2 patents)


17 patents:

1. 7223340 - Hollow fibre restraining system (2007-05-29),
2. 7160463 - Methods of minimizing the effect of integrity loss in hollow fibre membrane modules (2007-01-09),
3. 7018533 - High solids module (2006-03-28),
4. 6974554 - Potting method (2005-12-13),
5. 6969465 - Scouring method (2005-11-29),
6. 6962258 - Hollow fiber restraining system (2005-11-08),
7. 6955762 - Method of cleaning membranes (2005-10-18),
8. 6884350 - Modified membranes (2005-04-26),
9. 6872305 - Membrane filtration system (2005-03-29),
10. 6841070 - Apparatus and method for cleaning membrane filtration modules (2005-01-11),
11. 6821420 - Apparatus and method for cleaning membrane filtration modules (2004-11-23),
12. 6783008 - Hollow fibre restraining system (2004-08-31),
13. 6641733 - Apparatus and method for cleaning membrane filtration modules (2003-11-04),
14. 6524481 - Apparatus and method for cleaning membrane filtration modules (2003-02-25),
15. 5918730 - Sludge collector chain with snap-lock pins (1999-07-06),
Company Overview
U.S. Filter Wastewater Group, Inc. specializes in providing advanced solutions for wastewater treatment and management. The company focuses on developing innovative technologies and systems that enhance the efficiency and effectiveness of water purification processes. With a strong emphasis on sustainability, U.S. Filter aims to address the growing challenges of water scarcity and environmental protection. Headquartered in Warrendale, PA, the organization serves a diverse range of industries, contributing to cleaner water and improved ecological health.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

17 Patents

#7 in Warrendale, PA

#688 in Pennsylvania

#18,913 in US

#35,974 in the World

Warrendale, PA (US)
Warrendale, PA, United States of America

U.S. Filter Wastewater Group, Inc.

Forward Citations = 967

17 inventors:

goldMedal Fufang Zha (9 out of 35 patents)

silverMedal Edward John Jordan (4 out of 20 patents)

bronzeMedal David John Cox (4 out of 12 patents)

4.  Warren Thomas Johnson (4 out of 26 patents)

5.  Thomas William Beck (3 out of 46 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: U.S. Filter Wastewater Group, Inc.. Retrieved from https://idiyas.com/company/u-s-filter-wastewater-group

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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