Apple Gets Mixed Result in Validity Trials on Messaging Patents

Apple Inc. convinced a Patent and Trademark Office tribunal to invalidate part of two patents the company was sued for infringing while another patent withstood Apple’s arguments.

The Patent Trial and Appeal Board on Wednesday invalidated the majority of claims in MPH Technologies Oy’s 9,712,502 patent after Apple argued they were unpatentable. MPH’s 9,712,494 patent met a similar fate, with Apple proving the majority of claims invalid. Both patents cover a process for sending a message over a secure connection.

MPH saw different results for its 9,838,362 patent, which also involves secure messaging. During the PTAB trial, MPH disclaimed eight ...