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For the Inventor, By the Inventor

St. Gallen, Switzerland

Filtrox-Werk Ag

Calculating rank
USPTO Granted Patents = 6

Trademarks = 1

Forward Citations = 67

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13 inventors (with patents filed for the assignee):

goldMedal Josef Meier (1 out of 2 patents)

silverMedal Karl-Otto Meyer (1 out of 1 patent)

bronzeMedal Johannes Kiefer (1 out of 1 patent)

4.  Manfred Girr (1 out of 1 patent)

5.  Brigitte Lippuner (1 out of 1 patent)

6.  Aukens Jan Smaal (1 out of 1 patent)

7.  Ulrich Schrader (1 out of 1 patent)

8.  Niklaus Jungi (1 out of 1 patent)

9.  Erwin Baumann (1 out of 1 patent)

10.  Raffaello Rech (1 out of 1 patent)

11.  Ernst Keim (1 out of 1 patent)

12.  Istvan Laczko (1 out of 1 patent)

13.  Carl Ryffel (1 out of 1 patent)


6 patents:

1. 5801051 - Method and apparatus for cleaning a filter aid (1998-09-01),
2. 5792353 - Helical filter candle including evenly spaced turns and compressed ends (1998-08-11),
3. 5766467 - Backflushable filter arrangement and filter candle (1998-06-16),
4. 5262053 - Filtration process, use of stabilizers installation for a filtration (1993-11-16),
5. 5232595 - Deep bed filter, method of manufacture of a filter layer and a filter (1993-08-03),
6. 4149975 - Asbestos-free filtering layer (1979-04-17),
Company Overview
Filtrox-werk AG is a leading manufacturer of filtration systems for the food and beverage industry. With over 80 years of experience, Filtrox offers a wide range of innovative solutions for liquid filtration, including filter sheets, filter cartridges, and filter housings. Their products are known for their high quality, reliability, and efficiency, helping customers worldwide improve the safety and quality of their products.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

6 Patents

#14 in St. Gallen

#1,483 in Switzerland

St. Gallen, CH
St. Gallen, Switzerland

Filtrox-Werk Ag

Forward Citations = 67

13 inventors:

goldMedal Josef Meier (1 out of 2 patents)

silverMedal Karl-Otto Meyer (1 out of 1 patent)

bronzeMedal Johannes Kiefer (1 out of 1 patent)

4.  Manfred Girr (1 out of 1 patent)

5.  Brigitte Lippuner (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Filtrox-Werk Ag. Retrieved from https://idiyas.com/company/filtrox-werk-ag

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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