% Expired Patents = 50.0

EPO Patents = 1

Forward Citations = 2

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4 inventors (with patents filed for the assignee):

Peter Kurze (2 out of 9 patents)

Hermann Hans Urlberger (2 out of 2 patents)

Marc Weidenbach (1 out of 1 patent)

4. Jürgen Koch (1 out of 1 patent)

5. Tamara Schwarz (4 patents)

2 patents: Sort by Forward Citations

1. 9994948 - Method for producing oxide layers which protect against wear and/or corrosion (2018-06-12),

2. 8029907 - Production of wear-resistant layers on barrier-layer-forming metals or their alloys by means of laser treatment (2011-10-04),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

2 Patents

#4 in Kerpen

#10,692 in Germany

Kerpen, Germany

Ahc Oberflachentechnik Gmbh

Forward Citations = 2

4 inventors:

Peter Kurze (2 out of 9 patents)

Hermann Hans Urlberger (2 out of 2 patents)

Marc Weidenbach (1 out of 1 patent)

4. Jürgen Koch (1 out of 1 patent)

5. Tamara Schwarz (4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ahc Oberflachentechnik Gmbh. Retrieved from https://idiyas.com/company/ahc-oberflachentechnik

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]

1 patent (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]