Back in December, we published a story about a patent (6665797) belonging to Ho Keung Tse. The patent supposedly covered a DRM method by which users could download paid digital content to multiple devices without going through another payment process.

During a previous suit against a handful of tech companies, most of Tse's patent was invalidated. After amending the patent's language, Tse went after Google, Samsung, HTC, and Blockbuster, but a summary judgment stopped his case in its tracks.

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