PTAB Axes Patent Involved In Google, Amazon WDTX Suits
By Tiffany Hu (April 22, 2021, 6:21 PM EDT) -- The Patent Trial and Appeal Board has struck down several claims of a communications patent involved in parallel infringement litigation against Google and Amazon in the Western District of Texas, finding the claims obvious over prior art.
In a 79-page decision issued Wednesday, the PTAB invalidated each of the challenged claims in Hammond Development International Inc.'s communications systems patent for being obvious due to three published patent applications and a U.S. patent.
The PTAB found that a prior patent application known as Gilmore — which taught an automated voice response system that simulates a conversation with a caller — along with...
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