% Expired Patents = 100.0

EPO Patents = 3

Forward Citations = 1

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6 inventors (with patents filed for the assignee):

Josef Lifka (2 out of 2 patents)

Wolfram Wagener (1 out of 12 patents)

Jürgen Lukas (1 out of 1 patent)

4. Martin Barth (1 out of 1 patent)

5. Patrick Woisetschlaeger (1 out of 8 patents)

6. Karlheinz Hahn (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 10946497 - Processing tool, particularly a roll tool, and method of processing a cylindrical sliding surface (2021-03-16),

2. 10493538 - Apparatus for processing cylinder walls of internal combustion engines (2019-12-03),

3. 10316789 - Method of machining a motion-supporting surface of a cylinder of an internal combustion engine (2019-06-11),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#407 in W-8000 Munich

#8,434 in Germany

Munich, Germany

Hoffmann Gmbh Qualitätswerkzeuge

Forward Citations = 1

6 inventors:

Josef Lifka (2 out of 2 patents)

Wolfram Wagener (1 out of 12 patents)

Jürgen Lukas (1 out of 1 patent)

4. Martin Barth (1 out of 1 patent)

5. Patrick Woisetschlaeger (1 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hoffmann Gmbh Qualitätswerkzeuge. Retrieved from https://idiyas.com/company/hoffmann-qualitatswerkzeuge

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]

3 patents (EPO):

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]