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For the Inventor, By the Inventor

Munich, Germany

Retarus Gmbh


USPTO Granted Patents = 4



Trademarks = 2

Forward Citations = 1

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2 inventors (with patents filed for the assignee):

goldMedal Martin Hager (4 out of 10 patents)

silverMedal Michael Grauvogl (4 out of 4 patents)


4 patents:

1. 12756679 - Systems and methods for performing compatibility checks of electronic messages with specific applications (2026-10-06),
2. 10659493 - Technique for detecting malicious electronic messages (2020-05-19),
3. 10572664 - Technique for detecting suspicious electronic messages (2020-02-25),
4. 10057454 - Method for transmitting fax messages from a fax message sending device to a fax message receiving device (2018-08-21),
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USPTO Data Jan 1 1976 - Oct 13 2026

4 Patents

#345 in W-8000 Munich

#7,035 in Germany

Munich, DE
Munich, Germany

Retarus Gmbh

Forward Citations = 1

2 inventors:

goldMedal Martin Hager (4 out of 10 patents)

silverMedal Michael Grauvogl (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Retarus Gmbh. Retrieved from https://idiyas.com/company/retarus

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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