US · rules
N.D. Ohio L. P. R. 3.10
Amending and Supplementing Contentions; Final Contentions
(a) Unless otherwise ordered by the Court, the parties’ contentions and responses shall
have the same binding effect on a party as a response to an interrogatory made under
Rule 33 of the Federal Rules of Civil Procedure. The parties’ disclosures and
responses may be amended or supplemented without leave of court until the Final
Contentions are due under L. P. R. 3.10(b)-(d); provided, however, that after
submission of the exchange of claim terms under L. P. R. 4.1(c), additional claims in
the patent(s) in suit may not be asserted without obtaining leave from the Court for
good cause shown.
(b) Each party claiming patent infringement must serve on all parties “Final
Infringement Contentions” containing the information required L. P. Rule 3.1 within
fifteen (15) days of the Court’s claim construction ruling.
(c) Each party asserting non-infringement, invalidity or unenforceability of a patent
claim shall serve on all other parties “Final Noninfringement Contentions” and
“Final Invalidity and Unenforceability Contentions” containing the information
required by
L. P. R. 3.3 and 3.5 within thirty (30) calendar days of the Court’s claim construction
ruling. With the Final Invalidity Contentions, the party asserting invalidity of any
patent claim shall produce or make available for inspection and copying: a copy or
sample of all prior art identified pursuant to L. P. R. 3.6, to the extent not previously
produced. If any such item is not in English, an English translation of the portion(s)
relied upon shall be produced. The producing party shall separately identify by
production number which documents correspond to each category.
(d) Each party claiming patent infringement must serve on all parties “Final Validity and
Enforceability Contentions” containing the information required by L. P. R. 3.7
within forty-five (45) days of the Court’s claim construction ruling.
(e) A party may amend the final contentions required under L. P. R. 3.9(b)-(d) only by
order of the Court upon a showing of good cause and absence of unfair prejudice,
made in timely fashion following discovery of the basis for such amendment. The
duty to supplement discovery responses does not excuse the need to obtain leave of
court to amend contentions.
Local Patent Rules - Northern District of Ohio
Provenance
- Source
- www.ohnd.uscourts.gov
- Retrieved
- 2026-09-18
- Edition
- fed-district-2026-09-19
- Content hash
d8daee5aef875b9ae0fc5939759a24c13900e5ded10e616d80d29d1ac7aa8fb4
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