Exchange of Preliminary Claim Constructions and Extrinsic Evidence (a) Not later than 21 days after the exchange of the lists pursuant to Patent L.R. 4-1, the parties shall simultaneously exchange pro

(b) At the same time the parties exchange their respective “Preliminary Claim Constructions,” each party shall also identify all references from the specification or prosecution history that support its proposed construction and designate any supporting extrinsic evidence including, without limitation, dictionary definitions, citations to learned treatises and prior art, and testimony of percipient and expert witnesses. Extrinsic evidence shall be identified by production number or by producing a copy if not previously produced. With respect to any supporting witness, percipient or expert, the identifying party shall also provide a description of the substance of that witness’ proposed testimony that includes a listing of any opinions to be rendered in connection with claim construction. (c) The parties shall thereafter meet and confer for the purposes of narrowing the issues and finalizing preparation of a Joint Claim Construction and Prehearing Statement.