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For the Inventor, By the Inventor

Wuppertal, Germany

Membrana Gmbh


USPTO Granted Patents = 21

% Expired Patents = 42.9



Trademarks = 9

Forward Citations = 320

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38 inventors (with patents filed for the assignee):

goldMedal Friedbert Wechs (9 out of 14 patents)

silverMedal Oliver Schuster (6 out of 9 patents)

bronzeMedal Frank Wiese (6 out of 8 patents)

4.  Bodo Von Harten (5 out of 7 patents)

5.  Arne Gehlen (4 out of 4 patents)

6.  Erich Kessler (4 out of 4 patents)

7.  Quan Huang (3 out of 6 patents)

8.  Richard Kruger (3 out of 3 patents)

9.  Thomas Batzilla (3 out of 3 patents)

10.  Wolfgang Ansorge (2 out of 9 patents)

11.  Horst-Dieter Lemke (2 out of 5 patents)

12.  Martin König (2 out of 4 patents)

13.  Bernd Seibig (2 out of 6 patents)

14.  Dieter Paul (2 out of 6 patents)

15.  Ulrich Baurmeister (2 out of 18 patents)


21 patents:

1. 9254463 - Hollow fiber membrane mats with fluid impermeable segments and related methods (2016-02-09),
2. 8827086 - Ultrafiltration membrane (2014-09-09),
3. 8727136 - Microfiltration membrane with improved filtration properties (2014-05-20),
4. 8651284 - Dialysis membrane with improved removal of middle molecules (2014-02-18),
5. 8523981 - Hydrophobic ozone-stable membrane made of polyvinylidene fluoride (2013-09-03),
6. 8501008 - Method for the elimination of leukocytes from blood (2013-08-06),
7. 8302781 - High-flux dialysis membrane with an improved separation behaviour (2012-11-06),
8. 7985337 - Device for removing leukocytes from blood (2011-07-26),
9. 7811507 - Dialysis membrane having improved ability for removal of middle molecules (2010-10-12),
10. 7429420 - Method for producing foamed polymer molded bodies and said foamed polymer molder bodies (2008-09-30),
11. 7429343 - Process for producing polyolefin membrane with integrally asymmetrical structure (2008-09-30),
12. 7201860 - Polyamide membrane with improved hydrolytic stability and method for production thereof (2007-04-10),
13. 6946527 - Modified polymeric shaped body, method for producing the same and use thereof (2005-09-20),
14. 6918886 - Membrane module for the hemodiafiltration with integrated pre- or postdilution of the blood (2005-07-19),
15. 6776912 - Hemodiafiltration system and method (2004-08-17),
Company Overview
Membrana GmbH, based in Wuppertal, Germany, specializes in the development and manufacturing of advanced membrane technologies. The company focuses on innovative solutions for various applications, including filtration, separation, and purification processes across multiple industries. With a commitment to research and development, Membrana is dedicated to enhancing the efficiency and effectiveness of membrane systems, catering to sectors such as pharmaceuticals, food and beverage, and environmental technology.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

Membrana Gmbh USPTO Patent Assignee Logo
21 Patents

#17 in Wuppertal

#2,130 in Germany

#29,928 in the World

Wuppertal, DE
Wuppertal, Germany

Membrana Gmbh

Forward Citations = 320

38 inventors:

goldMedal Friedbert Wechs (9 out of 14 patents)

silverMedal Oliver Schuster (6 out of 9 patents)

bronzeMedal Frank Wiese (6 out of 8 patents)

4.  Bodo Von Harten (5 out of 7 patents)

5.  Arne Gehlen (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Membrana Gmbh. Retrieved from https://idiyas.com/company/membrana

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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