In patent infringement disputes, it is possible to narrowly construe a feature to the specific embodiment and its equivalent embodiment by arguing that a claimed feature is a functional one. The accused infringer usually adopts this strategy in its non-infringement defence to narrowly construe the scope of patent protection to obtain a favourable position in the infringement comparison. A recent case serves as a reference on how to determine the functional features in patent infringement disputes.
The Beijing IP Court handles a substantial number of cases each year. Despite a 90% increase in the number of concluded cases since 2015, the court remains under enormous pressure to reduce its case backlog, of which patent administrative cases account for a considerable proportion. In order to reduce this backlog, the court recently began enlisting technical investigators and jurors with technical expertise in court proceedings.