Cloudflare Defeats Another Patent Troll With Crowd-Sourced Prior-Art Army

When it comes to defeating patent trolls with crowd-sourced prior art, Cloudflare is now two-for-two after winning its latest case against Sable Networks. The Register: Sable Networks, which owns patents originally given to defunct "flow-based router" company Caspian Networks, sued Cloudflare and five other companies in 2021 alleging a whole host of violations of four patents now owned by Sable. A lot has changed since the case was filed in the US District Court for the Western District of Texas, leading to a jury verdict last week that found Cloudflare not only didn't infringe on the single patent that made it to trial, but that the final patent claim at issue was invalid as well. It took the jury just two hours to return the result, Cloudflare said. "Since Sable first sued us, we've invalidated significant parts of three Sable patents, hamstringing their ability to bring lawsuits against other companies," Cloudflare's in-house counsel boasted on Monday. Cloudflare said that it managed to whittle the case down from four patents and "approximately 100 claims" to a single claim on one patent -- number 7,012,919 -- over the past three years. This is thanks in part to the assistance of outside investigators on Project Jengo, a scheme first launched in 2017 to get help digging up prior-art patents when Cloudflare sued by another patent troll, Blackbird Technologies. More: Cloudflare blog.

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