Apple’s Multiple Petitions Against Nartron Patent Underscore PTAB’s Serial Petition Problem

Last week, the Patent Trial and Appeal Board (PTAB) issued 18 institution decisions based on petitions for inter partes review (IPR) proceedings, instituting 10 and denying eight. One of those denials ended a petition from Apple to challenge a touch screen patent owned by Nartron, although the PTAB instituted two other IPRs on the same patent the following Monday, giving rise to questions about whether the U.S. Patent and Trademark Office is effectively dealing with the issue of multiple petitions at the PTAB. Elsewhere, a pair of KOM Software patents asserted in separate district court proceedings against NetApp and Hewlett Packard each had two IPRs instituted against them after the patent infringement defendants teamed up to file petitions.

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