Echosens, S.A. v. E-Scopics S.A.S.

CourtDistrict Court, S.D. California
DecidedMay 7, 2026
Docket3:26-cv-00829
StatusUnknown

This text of Echosens, S.A. v. E-Scopics S.A.S. (Echosens, S.A. v. E-Scopics S.A.S.) is published on Counsel Stack Legal Research, covering District Court, S.D. California primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Echosens, S.A. v. E-Scopics S.A.S., (S.D. Cal. 2026).

Opinion

1 2 3 4 5 6 7 8 UNITED STATES DISTRICT COURT 9 SOUTHERN DISTRICT OF CALIFORNIA 10 11 ECHOSENS, S.A., Case No.: 3:26-cv-00829-RBM-JLB 12 Plaintiff, 13 ORDER GRANTING IN PART AND v. DENYING IN PART MOTION TO 14 E-SCOPICS S.A.S., QUASH SUBPOENA 15 Defendant. [ECF No. 1] 16 17 18 Before the Court is Third Party Kevin Murrey’s (“Mr. Murrey”) Motion to Quash 19 the Subpoena. (ECF No. 1.) Mr. Murrey asks the Court to quash the subpoena served on 20 him by Plaintiff Echosens (“Plaintiff”) in a case currently pending in the United States 21 District Court for the District of Massachusetts, Echosens S.A. v. E-Scopics S.A.S., No. 22 24- cv-11373-ADB (the “Massachusetts action”) pursuant to Federal Rules of Civil 23 Procedure 45(d)(3)(A). (Id.) For the reasons set forth below, the Court GRANTS IN 24 PART and DENIES IN PART the Motion. 25 I. BACKGROUND 26 Plaintiff, a French medical device company, commenced a patent infringement case 27 against its direct competitor, French company E-Scopics S.A.S. (“Defendant”), in the 28 United States District Court for the District of Massachusetts. (EFC No. 1-2 at 4.) Plaintiff 1 contends that Defendant infringes U.S. Patent Nos. 11,690,592 and 11,980,497. (Id.) Both 2 patents relate to Plaintiff’s product, the FibroScan. 3 Mr. Murrey is a former employee of Plaintiff’s and a former contractor of 4 Defendant’s. (Id. at 7.) Mr. Murrey was employed by Plaintiff from 2018 to 2019 and 5 from 2020 to 2022; he was later employed by Defendant from 2023 to 2025. (ECF No. 3 6 at 14.) He was Defendant’s only United States-based sales employee from November 2023 7 to February 2025. (Id. at 6.) Mr. Murrey authored and published LinkedIn posts 8 referencing United States activities involving the accused product, the Hepatoscope. (Id. 9 at 7.) Mr. Murrey asserts that he voluntarily deactivated his personal LinkedIn profile in 10 2025. (Id.) 11 On December 21, 2025, Mr. Murrey, a resident of San Diego, was served with a 12 subpoena for documents and testimony in the Massachusetts action. (EFC No. 1-2 at 4.) 13 Plaintiff seeks nine categories of documents and corresponding deposition testimony from 14 Mr. Murrey, namely: 15 (1) Request No. 1 seeks all documents and communications relating to any demonstrations of the Hepatoscope at trade shows, conferences, or 16 other events. 17 (2) Request No. 2 seeks all documents and communications relating to the marketing, promotion, and/or sale of the Hepatoscope device. 18 (3) Request No. 3 seeks all documents and communications from the 19 period during which Mr. Murrey worked for Defendant that mention or discuss any product offered by Plaintiff. 20 (4) Request No. 4 seeks all documents and communications relating to the 21 patents-in-suit or to this action. (5) Request No. 5 seeks all documents and communications relating to any 22 social media content concerning the Hepatoscope that Mr. Murrey 23 created, posted, shared, or commented on, including communications regarding requests or directions to modify, delete, or remove such 24 content, and documents sufficient to show any deletion, modification, 25 or removal of that content. (6) Request No. 6 seeks all of Mr. Murrey’s LinkedIn posts relating to the 26 Hepatoscope and/or Defendant. 27 28 1 (7) Request No. 7 seeks documents sufficient to show Mr. Murrey’s preservation, deletion, and/or retention of documents and 2 communications relating to the Hepatoscope and/or Defendant. 3 (8) Request No. 8 seeks any documents retained by Mr. Murrey after his employment with Plaintiff ended that were created by or on behalf of 4 Plaintiff or that relate to Plaintiff. 5 (9) Request No. 9 seeks all documents and communications relating to Mr. Murrey’s recruitment and hiring by Defendant and to his departure 6 from Defendant’s employ. 7 8 (ECF No. 3-2 at 62.) On January 19, 2026, Mr. Murrey responded to Plaintiff’s document 9 requests, confirming that he had no relevant and responsive documents to produce. (ECF 10 Nos. 1-2 at 4; 1-4.) Mr. Murrey’s deposition was noticed for January 27, 2026. (Id. at 55.) 11 On January 20, 2026, Mr. Murrey’s served objections to the subpoena including: (1) 12 that the requests called for information not within Mr. Murrey’s possession, custody or 13 control; and (2) that Mr. Murrey had no responsive documents. (ECF No. 1-4 at 6-12.) 14 On February 10, 2026, Mr. Murrey filed his Motion to Quash Subpoena. Plaintiff 15 timely filed its opposition1 (ECF No. 3) and Mr. Murrey duly replied (ECF No. 6). 16 II. LEGAL STANDARD 17 “[P]re-trial discovery is ordinarily accorded a broad and liberal treatment.” Shoen 18 v. Shoen, 5 F.3d 1289, 1292 (9th Cir. 1993) (internal quotations and citation omitted). 19 “This broad right of discovery is based on the general principle that litigants have a right 20 to ‘every man’s evidence,’ United States v. Bryan, 339 U.S. 323, 331 (1950), and that wide 21 access to relevant facts serves the integrity and fairness of the judicial process by promoting 22 the search for the truth.” Id. 23 24 25 1 In its opposition Plaintiff acknowledged that Mr. Murrey has responded to the duces 26 tecum portion of the subpoena and accepted at face value the representation from Mr. 27 Murrey’s counsel that Mr. Murrey has no documents to produce. (ECF. No. 2 at fn. 2.) However, Plaintiff reserved the right to question Mr. Murrey “about whether he has 28 1 Rule 45 of the Federal Rules of Civil Procedure authorizes a party to issue a 2 subpoena to command a non-party to produce designated documents, electronically stored 3 information, or tangible things in its possession, custody or control. See Fed. R. Civ P. 4 45(a)(1)(A)(iii). “A subpoena issued under Rule 45 must be relevant to the party’s claim. 5 The party seeking to compel discovery has the burden of establishing it meets the relevance 6 requirement of Rule 26.” Blue Line Foodservice Distribution, Inc. v. Cathcart, No. 24-cv- 7 1250-W-MMP, 2025 WL 3496499, at *6 (S.D. Cal. Dec. 4, 2025) (citations omitted). 8 Pursuant to Federal Rule Civil Procedure 45(d)(3), “on timely motion, the court for the 9 district where compliance is required must quash or modify a subpoena that . . . requires 10 disclosure of privileged or other protected matter. . . or subjects a person to undue burden.” 11 Fed. R. Civ. P. 45(d)(3)(A)(iii)-(iv). 12 “In determining whether a subpoena poses an undue burden, courts must weigh the 13 burden imposed on the party subject to the subpoena, the relevance of the information 14 sought to the claims or defenses at issue, the breadth of the discovery request, and the 15 litigant’s need for the information.” In re Insogna, No. 3:19-cv-1589-LAB-AHG, 16 2020 WL 85487, at *2 (S.D. Cal. Jan. 3, 2020) (internal quotations and citations omitted). 17 The Ninth Circuit has held that “[w]hile discovery is a valuable right and should not 18 be unnecessarily restricted,” necessary restrictions may be broader when it comes to non- 19 parties so as to protect them from harassment, inconvenience, or disclosure of confidential 20 documents. Dart Indus. Co. v. Westwood Chem. Co., 649 F.2d 646, 649 (9th Cir. 1980). 21 As such, subpoenas should be tailored, appropriately limited in scope, and not overbroad. 22 See Mattel, Inc. v. Walking Mountain Prods., 353 F.3d 792, 813 (9th Cir. 2003). 23 III. DISCUSSION 24 Mr.

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Echosens, S.A. v. E-Scopics S.A.S., Counsel Stack Legal Research, https://law.counselstack.com/opinion/echosens-sa-v-e-scopics-sas-casd-2026.