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Topsoe v. Casale — court partly grants and partly denies discovery requests

Reported / Citable

Case
Topsoe, Inc. v. Casale US, Inc. et al.
Court
U.S. District Court for the Southern District of Texas, Galveston Division
Judge
ANDREW M. EDISON
Date Decided
January 17, 2025
Docket No.
3:24-cv-00033
Topics
Discovery, Patent litigation, Privilege, Civil procedure

Background

Topsoe sued Casale US and Casale S.A. in a dispute involving ammonia-process technology and Casale’s U.S. Patent No. ’168. The parties submitted a joint letter presenting numerous discovery disputes concerning prior-art knowledge, event-related materials, the IFFCO Aonla plant project, commercialization, jurisdictional discovery, privilege claims, and discovery sought from Topsoe.

Topsoe sought broader responses and production from Casale, including information about Casale’s awareness of Topsoe’s blue or low-carbon ammonia technology. Casale, in turn, challenged Topsoe’s privilege log and sought broad categories of Topsoe’s communications, licensing materials, proposals, presentations, and documents bearing on allegations in the complaint.

The Court’s Holding

Magistrate Judge Andrew M. Edison overruled boilerplate general objections and several specific objections by Casale, but declined to compel Casale to revise interrogatory answers merely because Topsoe disputed their truthfulness. Casale was ordered to produce any outstanding responsive, nonprivileged documents for Topsoe’s Requests for Production 17–19 by January 31, 2025; Casale US was ordered to answer Interrogatory 11 by that date; and Casale had to produce two pages of its Rule 30(b)(6) designee’s notes because it did not substantiate its attorney-client or work-product claims.

The court denied or limited several other requests as facially overbroad or untimely. It approved Casale’s compromise to produce conference publications rather than all materials sought by Topsoe’s broad event-related requests, declined to compel further jurisdictional discovery after the deadline, and denied Topsoe’s global request concerning the ’168 patent family. The court sustained Topsoe’s overbreadth and proportionality objections to Casale’s broad Requests for Production 5, 13, and 14, while requiring Topsoe to produce nonprivileged documents supporting or refuting the specified allegation in paragraph 5 of its complaint. Topsoe also had until January 31, 2025, to supplement information about its privilege log.

Key Takeaways

  • Boilerplate general objections are ineffective and were struck or overruled.
  • A party cannot avoid production based on confidentiality commitments to third parties; properly logged privilege claims may still protect documents.
  • Requests using expansive terms such as “relating to” or “otherwise concerning” broad categories may be denied as overbroad and disproportionate.

Why It Matters

The order illustrates the court’s insistence on targeted, proportional discovery in patent-related commercial litigation. It also underscores that parties asserting privilege must support it with competent, specific evidence—not conclusory statements or a bare privilege log.

For litigants, the ruling reinforces the need to meet discovery deadlines, craft focused requests, and use further discovery or depositions to test disputed interrogatory answers rather than asking the court to dictate a party’s substantive response.

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