When it comes to video codecs, Dusseldorf has been the world's leading patent enforcement forum for about a decade. However, Access Advance has lately suffered a major setback there, and it appears that the HEVC Advance pool's answer to the duplicate-royalty problem is still lacking and wanting.
Meanwhile I've done some research on patent infringement actions brought by HEVC Advance licensors against Chinese electronics maker TCL, a frequent defendant to standard-essential patent (SEP) assertions. Those cases were filed with the Munich I Regional Court, where TCL has also been sued by LG Elecronics over a couple of wireless patents, but those cases are stayed until at least the end of next month. The patents-in-suit in those wireless cases (case nos. 7 O 12979/20 and 7 O 12656/20) EP2239905 and EP2086155, both on an "apparatus for transmitting and receiving a signal and method of transmitting and receiving a signal."
A spokeswoman for the Munich court has confirmed the pendency of the following HEVC Advance v. TCL cases:
21st Civil Chamber (Presiding Judge: Dr. Georg Werner); hearing dates in September and November
Dolby v. TCL, case no. 21 O 4139/21, EP2777270 on a "procedure for coding and decoding of images, apparatus for coding and decoding and corresponding computer programs"
Mitsubishi v. TCL, case no. 21 O 4136/21, EP2720468 on a "moving image decoding method"
GE v. TCL, case no. 21 O 4140/21, EP2559245 on "video coding using multi-tree sub-divisions of images"
ETRI v. TCL, case no. 21 O 4141/21, EP2723078 on an "image decoding apparatus"
IP Bridge v. TCL, case no. 21 O 8819/21, EP3288261 on a "moving picture decoding method"
44th Civil Chamber (Presiding Judge: Dr. Anne-Kristin Fricke)
Philips v. TCL, case no. 44 O 6966/21, EP2950544 on "adaptive coding of the prediction error in hybrid video coding" (hearing date TBD)
It's a safe assumption that TCL won't be the last company to be sued by HEVC Advance licensors in Munich...
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