T 2764/19—Can an arbitrary difference be non-obvious?

This is an opposition appeal around EP 1 889 513 “COMMUNICATION SYSTEM FOR WIRELESS AUDIO DEVICES”. The patentee is US-based Starkey Laboratories, Inc., one of the largest hearing aid manufacturers in the world and a very active patent filer. The board of appeal’s decision dealt with a situation that often occurs in patent prosecution. Once … Continue reading T 2764/19—Can an arbitrary difference be non-obvious?