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N.D. Cal.Procedural orderFiled Dec. 19, 2025

Samsung Electronics Co, Ltd., et al. v. CM HK, Ltd.

Judge
Jon Tigar
Docket
4:24-cv-06567
Court
U.S. District Court · Northern District of California
Pages
5
Civil ProcedureIntellectual Property
In one sentence

In Samsung Electronics v. CM HK, Judge Tigar denied CM HK’s motion for Rule 11 sanctions because Samsung’s positions were not shown frivolous or abusive.

Who this affects

CM HK, Ltd.’s request for Rule 11 sanctions against Samsung was denied; the order addressed the requested sanctions, claim dismissal, and attorney’s fees and costs, while the underlying patent dispute remained pending.

What happened

Samsung Electronics Co, Ltd., et al. v. CM HK, Ltd. concerns Samsung’s lawsuit seeking a declaration that it did not infringe several patents. CM HK asked the court to sanction Samsung under Rule 11.

CM HK argued that Samsung’s proposed patent-term meaning, alter-ego allegations, and litigation strategy violated Rule 11. The court disagreed, finding that the record did not show Samsung’s claim construction was objectively frivolous, that the alter-ego theory was credible enough to justify jurisdictional discovery, and that CM HK offered no factual support for its claims about delay and increased litigation costs.

Judge Tigar denied CM HK’s motion for sanctions. CM HK had also requested dismissal of Samsung’s alter-ego and noninfringement claims and an award of attorney’s fees and costs, but the order denied the sanctions motion rather than granting those requests.

The detailed version

For law students, journalists, and other readers who want the full reasoning

Case
Samsung Electronics Co, Ltd., et al. v. CM HK, Ltd. · No. 4:24-cv-06567
Judge
Jon Tigar
Date
Dec. 19, 2025

Background

Samsung filed the case seeking a declaratory judgment that it did not infringe four patents: U.S. Patent Nos. 10,852,846, 11,698,687, 10,275,038, and 10,817,072. The opinion states that the case was brought against CM HK and CyWee. CM HK later filed a patent-infringement case against Samsung in the Eastern District of Texas involving two of those patents.

CM HK previously moved to dismiss Samsung’s complaint for lack of subject-matter jurisdiction, lack of personal jurisdiction, and failure to state a claim. The court found that it lacked personal jurisdiction over CM HK but granted Samsung jurisdictional discovery after finding a colorable basis to believe that CM HK and CyWee might have commingled or manipulated assets, potentially making CM HK CyWee’s alter ego. That discovery was ongoing.

Motion for sanctions

CM HK sought sanctions against Samsung under Rule 11. It specifically asked the court to dismiss Samsung’s alter-ego and noninfringement claims with prejudice and to award CM HK attorney’s fees and costs incurred defending the case. CM HK argued that sanctions were warranted because Samsung allegedly:

  1. Refused to disclose the meaning it assigned to the patent term “predicted axial accelerations”;
  2. Knew or should have known that its alter-ego allegations were legally deficient; and
  3. Intended to delay the case and increase CM HK’s litigation costs.

Court’s analysis

As to claim construction, the court held that CM HK had not shown Samsung’s proposed interpretation was so unreasonable that no reasonable litigant could believe it would succeed. Claim construction was not then before the court, and no claim-construction hearing had been set. Because the court lacked a full record, it could not determine that Samsung’s position was objectively frivolous or contradicted the patent record. The court denied sanctions on that ground.

As to the alter-ego theory, the court relied in part on its earlier finding that Samsung’s theory was credible enough to justify jurisdictional discovery. That finding undermined CM HK’s argument that the theory was objectively baseless. The court also found that Samsung’s discovery requests did not appear overly broad because the requested information could clarify the ownership relationship between CyWee and CM HK. Samsung’s decision not to assert an alter-ego theory in the Eastern District of Texas case did not change the court’s conclusion because CM HK had initiated that case and personal-jurisdiction disputes were not present there. The court found that sanctions were not warranted on this ground.

As to litigation conduct, CM HK argued that Samsung selected the Northern District of California because it was more likely to receive a stay related to inter partes review, limited its complaint to noninfringement claims to preserve the ability to file such petitions, and used the case to delay resolution and increase costs. The court found these allegations were attorney argument without factual support. It also rejected CM HK’s argument that Samsung’s choice to litigate in California showed bad faith or improper forum selection. The court stated that Samsung’s strategic choices did not subject it to sanctions merely because they did not match CM HK’s preferences.

Disposition

The court denied CM HK, Ltd.’s motion for sanctions. The order did not grant CM HK’s requests to dismiss Samsung’s claims or award attorney’s fees and costs.

The authoritative version

Read the full 5-page opinion on CourtListener, the free public archive maintained by the Free Law Project.

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