US · rules
N.D. Ind. L.P.R. 4-1
Claim-construction Proceedings
(a) Exchanging Terms. Within 14 days after receiving the preliminary invalidity
contentions (or within 42 days after receiving the preliminary infringement
contentions in those actions in which validity is not at issue), each party must
serve on all other parties a list of claim terms that the party contends should be
construed by the court (terms for construction), and identify any claim term that
the party contends should be governed by 35 U.S.C. § 112(f).
(b) Exchanging Preliminary Claim Constructions and Extrinsic Evidence; Parties’
Conference.
(1) Within 14 days after the proposed terms for construction are exchanged,
the parties must exchange proposed constructions of each term
(preliminary claim construction[s]). Each preliminary claim construction
must also, for each term which any party contends is governed by 35
U.S.C. § 112(f), identify the function of that term and the structures, acts,
or materials corresponding to that term’s function.
(2) When the parties exchange their preliminary claim constructions, they
must also identify all references from the specification or prosecution
history that support its construction and designate any supporting
extrinsic evidence including:
(A) dictionary definitions;
(B) citations to learned treatises and prior art, and
(C) testimony of percipient and expert witnesses.
(3) Within 14 days after the preliminary claim constructions are exchanged,
the parties must meet and confer to limit the terms in dispute by
narrowing or resolving differences and plan to prepare a joint claim-construction and prehearing statement. The parties must also jointly identify
no more than ten disputed terms per patent in suit, unless the court grants
more for inclusion in the joint claim-construction and prehearing
statement. If a dispute arises as to which terms to include in the joint
claim-construction and prehearing statement, each side must be
presumptively limited to five disputed terms per patent in suit. This limit
may only be altered by leave of court.
(c) Joint Claim-construction and Prehearing Statement. Within 14 days after they
meet and confer, the parties must complete and file a joint claim-construction and
prehearing statement. This statement must address the disputed terms and contain
the following information:
(1) The construction of those terms on which the parties agree;
(2) Each party’s construction of each disputed term (with the identity of all
references from the specification or prosecution history that support its
construction) and the identity of any extrinsic evidence known to the
party on which it intends to rely either to support its construction or to
oppose another party’s construction, including dictionary definitions,
citations to learned treatises and prior art, and testimony of percipient and
expert witnesses;
(3) The anticipated length of time necessary for the claim-construction
hearing; and
(4) If witnesses are to be called at the claim-construction hearing, the identity
of each such witness, and for each witness, a summary of his or her
testimony including, for any expert witness, a report containing the
expert’s claim-construction opinions and the reasons for them.
(d) Completing Claim-construction Discovery. Within 21 days after the joint claim-construction and prehearing statement is filed, the parties must complete all
discovery relating to claim construction, including witness depositions.
(e) Claim-construction Briefs
(1) Opening Briefs. Within 14 days after completing claim-construction
discovery, the parties must file their respective opening briefs and any
evidence supporting their claim constructions.
(2) Length. Opening briefs may not exceed 30 pages without leave of court.
(3) Response Briefs. Within 21 days after receiving an opening brief, each
opposing party must file any response briefs and supporting evidence.
(4) Length. Response briefs may not exceed 20 pages without leave of court.
(5) Additional Briefs. Reply and surreply briefs are not permitted without
leave of court.
(f) Claim-construction Hearing. When necessary to construe the claims, the court
will endeavor to conduct a claim-construction hearing within 63 days after
briefing is complete.
(g) Tutorial Hearings. The court may order a tutorial hearing to occur before, or
during, the claim-construction hearing.
(h) Orders. The court will work expeditiously to issue a prompt claim-construction
order after the hearing.
Provenance
- Source
- www.innd.uscourts.gov
- Retrieved
- 2026-09-18
- Edition
- fed-district-2026-09-19
- Content hash
430c2c1cd253a876d0cc12594786b8f31bb6346996b948b22ce859d6b71a940b
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