Patent No. EP3300421 (titled "Slow Mac-E For Autonomous Transmission In High Speed Uplink Packet Access (Hsupa) Along With Service Specific Transmission Time Control") was filed by Conversant Wireless Licensing S RL on Sep 30, 2005. The application was issued on Aug 21, 2019.

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.
| Company | Opposition Date | Representative |
|---|---|---|
| ASUS COMPUTER | Jun 2, 2020 | KEENWAY PATENTANWALTE NEUMANN HEINE TARUTTIS |
| TESLA GERMANY | Jun 1, 2020 | CMS CAMERON MCKENNA NABARRO OLSWANG |
| CONTINENTAL AUTOMOTIVE | May 20, 2020 | BRAUN DULLAEUS PANNEN EMMERLING PATENT & RECHTSANWALTSPARTNERSCHAFT MBB |
| HUAWEI | May 20, 2020 | BRAUN DULLAEUS PANNEN EMMERLING PATENT & RECHTSANWALTSPARTNERSCHAFT MBB |
| LG ELECTRONICS | May 19, 2020 | MOOSER |
| DAIMLER | May 18, 2020 | GROSCH |
| ROBERT BOSCH | May 18, 2020 | BARDEHLE PAGENBERG PARTNERSCHAFT MBB PATENTANWALTE RECHTSANWALTE |
| TOMTOM SALES | May 18, 2020 | BARDEHLE PAGENBERG PARTNERSCHAFT MBB PATENTANWALTE RECHTSANWALTE |
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.
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