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For the Inventor, By the Inventor

Wilmington, MA, United States of America

Koch Membrane Systems Gmbh


USPTO Granted Patents = 36

% Expired Patents = 30.6



Trademarks = 14

Forward Citations = 567

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40 inventors (with patents filed for the assignee):

goldMedal David M Colby (10 out of 12 patents)

silverMedal Klaus Vossenkaul (7 out of 18 patents)

bronzeMedal Stefan Schäfer (6 out of 6 patents)

4.  Taylour L Johnson (6 out of 7 patents)

5.  Christoph Kullmann (4 out of 4 patents)

6.  John Paul Puglia (4 out of 17 patents)

7.  Frederick K Lesan (3 out of 7 patents)

8.  Alan M Franks (3 out of 3 patents)

9.  Chang-Li Hsieh (3 out of 13 patents)

10.  Anjan Kumar Mukherjee (3 out of 3 patents)

11.  Jiang Ji (3 out of 3 patents)

12.  Candeloro DiCecca (3 out of 3 patents)

13.  Mahesh Mehta (3 out of 3 patents)

14.  David F McKinley (3 out of 3 patents)

15.  Clyde W Fulk, Jr (3 out of 4 patents)


Core Competencies:
Hollow Fiber Membrane
Ultrafiltration
Water Treatment
Membrane Module
Filtration Element
Composite Membrane
Microfiltration
Spiral Wound
Gasification Device
Capillary Membranes
Durable Filtration
Electrode Apparatus

36 patents:

1. 9968888 - Method for sealing hollow fiber membranes (2018-05-15),
2. 9956530 - Membrane module system with bundle enclosures and pulsed aeration and method of operation (2018-05-01),
3. D779632 - Bundle body (2017-02-21),
4. D779631 - Gasification device (2017-02-21),
5. 9498753 - Method for sealing hollow fiber membranes (2016-11-22),
6. 9333464 - Membrane module system with bundle enclosures and pulsed aeration and method of operation (2016-05-10),
7. 8480898 - Membrane module for immersed operation (2013-07-09),
8. 8079572 - Device for gassing a liquid (2011-12-20),
9. 7931805 - Membrane filter unit and method for the production of the membrane filter unit (2011-04-26),
10. 7638048 - Membrane module for immersed operation (2009-12-29),
11. 7531091 - Hollow fiber membrane filter with a supporting structure (2009-05-12),
12. 7501084 - Method for producing fabric-reinforced capillary membranes, in particular for ultrafiltration (2009-03-10),
13. 7387731 - Filtration element and method of constructing a filtration assembly (2008-06-17),
14. 7335301 - Fold protection for spiral filtration modules utilizing UV cured adhesive and method of providing same (2008-02-26),
15. 7311830 - Filtration element and method of constructing a filtration assembly (2007-12-25),
Koch Membrane Systems GmbH specializes in advanced membrane filtration technologies, providing innovative solutions for water treatment, industrial processes, and food and beverage applications. The company focuses on developing high-performance membranes that enhance efficiency and sustainability in various sectors. With a commitment to research and development, Koch Membrane Systems plays a crucial role in addressing global water challenges and improving resource management, primarily serving clients across diverse geographic regions.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Koch Membrane Systems Gmbh
36 Patents

#13 in Wilmington, MA

#560 in Massachusetts

#9,495 in US

#18,697 in the World

Wilmington, MA (US)
Wilmington, MA, United States of America

Koch Membrane Systems Gmbh

Forward Citations = 567

40 inventors:

goldMedal David M Colby (10 out of 12 patents)

silverMedal Klaus Vossenkaul (7 out of 18 patents)

bronzeMedal Stefan Schäfer (6 out of 6 patents)

4.  Taylour L Johnson (6 out of 7 patents)

5.  Christoph Kullmann (4 out of 4 patents)

Please report any incorrect information to [email protected]
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