Japan’s IP Bridge has had a torrid start to the year as four semiconductor companies teamed up to hit the patent fund operator with 24 inter partes reviews (IPRs) at the USPTO's Patent and Trial Appeal Board (PTAB) in the space of just one month. The new petitions complicate three of the NPE’s four active US patent assertion campaigns – those against Broadcom, Omnivision and Xilinx – and have made crystal clear that the US patent litigation environment is much less hospitable to patent plaintiffs than it was at the time the public-private entity was established.

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