Trademarks = 1

Forward Citations = 19

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3 inventors (with patents filed for the assignee):

Hans Wanner (3 out of 3 patents)

Kurt Boppart (1 out of 1 patent)

Ulf Spiegelberg (1 out of 2 patents)

4 patents: Sort by Forward Citations

1. 5195420 - Piston compressor, particularly an oil-free piston compressor (1993-03-23),

2. 4982923 - Device for adjustable mounting of guide rails on a base (1991-01-08),

3. 4756298 - Apparatus for machining relatively hard building material (1988-07-12),

4. 4312106 - Process for applying a heat-barrier layer to a piston crown (1982-01-26),

Company Overview

Fritz Haug, Ag is a leading agricultural equipment manufacturer that specializes in the design and production of high-quality farming machinery. With a focus on innovation and customer satisfaction, Fritz Haug, Ag offers a wide range of products to meet the needs of modern farmers. Visit our website to learn more.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#21 in St. Gallen

#2,006 in Switzerland

St. Gallen, Switzerland

Fritz Haug, Ag

Forward Citations = 19

3 inventors:

Hans Wanner (3 out of 3 patents)

Kurt Boppart (1 out of 1 patent)

Ulf Spiegelberg (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Fritz Haug, Ag. Retrieved from https://idiyas.com/company/fritz-haug-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]