3 known cases. View patent page →
The infringing product is a feature that shows users a live preview of their content as it is being created or edited.
This case involved allegations that Microsoft's 'Live Preview' feature infringed on several Corel patents, including the '996 patent. The case was stayed multiple times pending the outcome of PTAB proceedings and was ultimately resolved by a summary judgment in favor of Microsoft in September 2025.
Microsoft challenged the validity of the '996 patent through inter partes review (IPR) at the PTAB. In response to the PTAB instituting the review, Corel canceled all of the asserted claims of the patent that were under review.