Patent No. EP4103501 (titled "Method Of Operating A Computer-Controlled Device For Establishing A Secure Data Communication In A Distributed Control System Of A Passenger Transportation Arrangement") was filed by Inventio on Feb 8, 2021. The application was issued on Jan 22, 2025.
Method for establishing secure data communication between computer-controlled devices in a distributed control system of a passenger transportation arrangement, comprising: generating a certificate signing request by the first device; sending the certificate signing request to a certificate authority via a secured data communication path; receiving a certificate from the certificate authority; and authenticating the second device using the received certificate.

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
Get instant alerts for new documents