
An interesting opinion from Judge Thynge last week on case narrowing, and in particular, how to count invalidity arguments.
The defendant in Targus International LLC v. Victorinox Swiss Army, Inc.., C.A. No.20-464-RGA-MPT (D. Del. Nov. 18, 2022), had agreed to reduce the number of prior art "arguments" to 5. In its expert reports, however, they had counted reference "A in view of B", as well as "B in view of A" as a single argument. This lead to the inclusion of (what plaintiff counted as) more than 5 arguments. Plaintiff then moved to strike the extraneous arguments and Judge Thynge agreed, holding:
In its letter brief, Defendant maintains that it "never labeled any reference …








