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Relationship to Federal Rules of Civil Procedure and Local Civil Rules for the

W.D. Tenn. Local Rule 2.3

United States District Court, Western District of Tennessee Page 5 of 17 Local Patent Rules - Western District of Tennessee A party may not object to discovery on the ground that it conflicts with or is premature under these Local Patent Rules, except to the following categories of requests and disclosures: (a) Requests for a party’s claim construction position; (b) Requests for the same information required to be disclosed under Local Patent Rules 3.1-3.7; and (c) Requests that an accused infringer identify whether it intends to rely upon the opinion(s) of counsel as a defense against an allegation of willful infringement. Federal Rule of Civil Procedure 26(e)’s requirements concerning the supplementation of disclosure and discovery responses apply to all disclosures required under these Local Patent Rules. Parties may use stipulations provided for in Rule 29, if otherwise compliant with that Rule, to modify time periods or formats for service of contentions, production of documents, or other exchanges or information prescribed in these Local Patent Rules or a Scheduling Order entered pursuant hereto, and are not items required to be filed with the Court, provided that such modifications do not interfere with deadlines for Court filings or dates for Court proceedings such as the Claim Construction Hearing. Such stipulations need not be filed in the action, but no stipulation will be enforced by the Court unless memorialized between counsel. III. PATENT DISCLOSURES 3.1. Initial Infringement Contentions Within 21 days after the Initial Response is filed, and after consultation with each opposing party to identify and narrow the issues presented, a party claiming patent infringement shall serve on all parties Initial Infringement Contentions, which shall contain at least the following information: (a) Each claim of each patent in suit that is allegedly infringed by each opposing party, including for each claim, the applicable statutory subsection(s) of 35 U.S.C. § 271 (“Infringement of Patent”) asserted; (b) Separately for each asserted claim, each Accused Instrumentality that each party claiming infringement contends infringes, including the name or model number if known; (c) A chart identifying specifically where each limitation of each asserted claim is found within each Accused Instrumentality, including for each limitation that Page 6 of 17 such party contends is governed by 35 U.S.C. § 112, ¶ 6, the identity of the corresponding structure and function and where such structure and function is found in the Accused Instrumentality; (d) For each claim that is alleged to have been indirectly infringed, an identification of any direct infringement and a description of the acts of the alleged indirect infringer(s) that contribute to or that are inducing direct infringement, including a description of the role of each relevant party if direct infringement is based on the Page 7 of 17 Local Patent Rules - Western District of Tennessee joint acts of multiple parties; (e) Whether each limitation of each asserted claim is alleged to be literally present or present under the doctrine of equivalents in the Accused Instrumentality; (f) For any patent that claims priority to an earlier application, the priority date to which each asserted claim allegedly is entitled; and (g) If a party claiming patent infringement alleges willful infringement, the basis for such allegation. 3.2. Document Production Accompanying Initial Infringement Contentions With the Initial Infringement Contentions, the party claiming patent infringement shall produce to each opposing party or make available for inspection and copying: (a) All documents concerning any disclosure, sale or transfer, or offer to sell or transfer of the claimed invention prior to the bar date under 35 U.S.C. § 102(b) and/or the date of invention for the patent in suit; (b) All documents evidencing the conception and first reduction to practice of each claimed invention created on or before the date of application for the patent in suit or the priority date identified pursuant to LPR 3.1(f), whichever is earlier; (c) A copy of the file history for each patent in suit (or so much thereof as is in the possession of the patentee) and any patent(s) or application(s) to which each patent in suit claims priority; and (d) All documents evidencing ownership of the patent rights by the party asserting patent infringement. Nothing in these required disclosures shall be considered an admission that such disclosures are prior art or evidence of prior art under 35 U.S.C. §§ 102 or 103. 3.3. Initial Non-infringement Contentions Within 28 days after service of the Initial Infringement Contentions, each party opposing a claim of patent infringement shall serve on all parties Non-infringement Contentions, which shall contain the following information: (a) A chart, responsive to the chart required by LPR 3.1(c), that identifies as to each identified element in each asserted claim (1) whether such element is present Page 7 of 17 Local Patent Rules - Western District of Tennessee literally or under the doctrine of equivalents in each Accused Instrumentality and, if not, the reason for such denial and the relevant distinctions, and (2) for each limitation that such party contends is governed by 35 U.S.C. § 112, ¶6, the corresponding structure and function, (if different from that identified in LPR 3.1(c)), whether or not such structure and function are found in the Accused Instrumentality, and/or any basis for claiming that such limitation is invalid for indefiniteness; and (b) A statement that the proper parties have been served or, if the proper parties have not been served, a statement identifying the proper parties to the extent they are known. 3.4. Document Production Accompanying Initial Non-infringement Contentions With its Non-infringement Contentions, the party opposing a claim of patent infringement shall produce or make available for inspection and copying: (a) Documents sufficient to support the statement(s) made in the chart required by LPR 3.3(a); (b) Documents sufficient to evidence the actual parties that make and sell the Accused Instrumentality or any other documents sufficient to support the statement(s) made in response to LPR 3.3(b); and (c) Documents sufficient to describe the structure, composition, and/or operation of the Accused Instrumentality. 3.5. Invalidity and Unenforceability Contentions Within 90 days after the Initial Response is filed, and after consultation with each opposing party to identify and narrow the issues presented, each party asserting that a claim of a patent is invalid or unenforceable shall serve on all parties its Invalidity and Unenforceability Contentions, which shall contain at least the following information: (a) The identity of each item of prior art that allegedly anticipates each asserted claim or renders it obvious. Each prior art patent shall be identified by its number, country of origin, and date of issue. Each prior art publication shall be identified by its title, date of publication, and, where feasible, author and publisher. Prior art under 35 U.S.C. § 102(b) shall be identified by specifying the item offered for sale or publicly used or known, the date the offer or use took place or the information became known, and the identity of the person or entity that made the use or that made and received the offer, or the person or entity that made the Page 8 of 17 Local Patent Rules - Western District of Tennessee information known or to whom it was made known. Prior art under 35 U.S.C. § 102(f) shall be identified by providing the name of the person(s) from whom and the circumstances under which the invention or any part of it was derived. Prior art under 35 U.S.C. § 102(g) shall be identified by providing the identities of the person(s) or entities involved in and the circumstances surrounding the making of the invention before the patent applicant(s); (b) Whether each item of prior art anticipates each asserted claim or renders it obvious under 35 U.S.C. §§ 102 or 103. If obviousness is alleged, an explanation of why the prior art renders the asserted claim obvious, including an identification of any combinations of prior art showing obviousness; (c) For each alleged item of prior art, a chart identifying specifically where each limitation of each asserted claim is found, including for each limitation that such party contends is governed by 35 U.S.C. § 112, ¶6, the identity of the structure(s), act(s), or material(s) in each item of prior art that performs the claimed function; (d) Any grounds of invalidity based on 35 U.S.C. §§ 102 or 103, including invalidity contentions based on written description, enablement, indefiniteness, and/or best mode; and (e) The grounds for any charge that any of the asserted claims are unenforceable for inequitable conduct, including the identification of any information alleged to have been withheld, misstated, or otherwise misrepresented to the United States Patent Office; the basis for claiming such information was material to patentability; and the basis for claiming that the patentee withheld, misstated, or misrepresented such information with the requisite intent. 3.6. Document Production Accompanying Invalidity and Unenforceability Contentions With its Invalidity and Unenforceability Contentions, any party opposing a claim of patent infringement shall produce or make available for inspection and copying: (a) A copy or sample of the prior art identified pursuant to LPR 3.5(a). To the extent 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 invalidity category; and (b) All documents supporting any statement(s) made in response to LPR 3.5(e).
Official source: https://www.tnwd.uscourts.gov/sites/tnwd/files/Local%20Rules%20%E2%80%93%20Revised%2011.17 · retrieved 2026-07-23