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Stuttgart, Germany

Knecht Filterwerke Gmbh

USPTO Granted Patents = 15

Trademarks = 2

Forward Citations = 231

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37 inventors (with patents filed for the assignee):

Hans Gebert (4 out of 14 patents)

Rolf Mohle (4 out of 5 patents)

Thomas Brieden (3 out of 10 patents)

4. Elke Bruss (3 out of 3 patents)

5. Markus Layer (2 out of 4 patents)

6. Matthias Bohl (2 out of 2 patents)

7. Dietwart Guntert (2 out of 2 patents)

8. Dietmar Sonntag (2 out of 3 patents)

9. Hans Waibel (1 out of 13 patents)

10. Uwe Mohr (1 out of 2 patents)

11. Jürgen Schrepfer (1 out of 2 patents)

12. Klaus Schweikert (1 out of 2 patents)

13. Lothar Mauz (1 out of 8 patents)

14. Kay Brodesser (1 out of 4 patents)

15. Claude Gebler (1 out of 2 patents)

15 patents: Sort by Forward Citations

1. 6368506 - Ring encasement with clamps for zigzag fold paper (2002-04-09),

2. 6161615 - Plate-type heat exchanger, especially oil/coolant cooler in vehicles (2000-12-18),

3. 616161 - Plate-type heat exchanger, especially oil/coolant cooler in vehicles (2000-12-19),

4. 6089213 - Lubricating oil fill line for an internal combustion engine, involving a (2000-07-18),

5. 5989413 - Fuel filter with an integrated pressure regulating valve (1999-11-23),

6. 5983870 - Adsorption filter for the fuel tank venting system of an internal (1999-11-16),

7. 5956822 - Snap-lock connection for two parts which can rotate in relation to each (1999-09-28),

8. 5814215 - Oil filter including an integral filter support and housing drain valve (1998-09-29),

9. 5698097 - Oil filter including replaceable primary and secondary flow filter (1997-12-16),

10. 5589060 - Filter for liquids, in particular internal-combustion engine lubricant (1996-12-31),

11. 5460147 - Cyclone separator for an internal combustion engine (1995-10-24),

12. 5080790 - Strip-shaped filter material with crimps molded in and filter elements (1992-01-14),

13. 4466817 - Exhaust gas separator (1984-08-21),

14. 4422790 - Connecting means for filter cartridges (1983-12-27),

15. 4287917 - Diaphragm device for damping vibrations in flowing liquids (1981-09-08),

Company Overview

Knecht Filterwerke GmbH, based in Stuttgart, Germany, specializes in the development and manufacturing of high-quality filtration solutions for various industries, including automotive and industrial applications. The company focuses on innovative technologies that enhance engine performance and reduce emissions, contributing to environmental sustainability. With a commitment to research and development, Knecht Filterwerke aims to meet the evolving needs of its clients while adhering to stringent quality standards.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

15 Patents

#46 in D-7000 Stuttgart

#2,773 in Germany

#39,921 in the World

Stuttgart, Germany

Knecht Filterwerke Gmbh

Forward Citations = 231

37 inventors:

Hans Gebert (4 out of 14 patents)

Rolf Mohle (4 out of 5 patents)

Thomas Brieden (3 out of 10 patents)

4. Elke Bruss (3 out of 3 patents)

5. Markus Layer (2 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Knecht Filterwerke Gmbh. Retrieved from https://idiyas.com/company/knecht-filterwerke

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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