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ITCOctober 8, 2026·DN-3943·PRE-INSTITUTION COMPLAINT FILED

Certain Spectral Flow Cytometry Systems and Components Thereof

U.S. International Trade Commission

Holding

Cytek Biosciences, Inc. filed a Section 337 complaint on October 8, 2026 against Beckman Coulter, Inc. and Beckman Coulter Biotechnology (Suzhou) Co., Ltd. over certain spectral flow cytometry systems and components thereof, seeking a limited exclusion order, cease and desist orders and a bond during the Presidential review period. The notice does not identify the asserted patents.

Why It Matters

The complaint concerns spectral flow cytometry systems, and the notice does not describe market significance. The Commission solicits public interest comments on public health and welfare, competitive conditions, production of like or directly competitive articles in the U.S., and U.S. consumers. Submissions are due eight calendar days after Federal Register publication and are limited to five pages.

Full Summary

Cytek Biosciences, Inc. filed a Section 337 complaint on October 8, 2026 against Beckman Coulter, Inc. and Beckman Coulter Biotechnology (Suzhou) Co., Ltd. over certain spectral flow cytometry systems and components thereof, seeking a limited exclusion order, cease and desist orders and a bond during the Presidential review period. The notice does not identify the asserted patents. The complaint concerns spectral flow cytometry systems, and the notice does not describe market significance. The Commission solicits public interest comments on public health and welfare, competitive conditions, production of like or directly competitive articles in the U.S., and U.S. consumers. Submissions are due eight calendar days after Federal Register publication and are limited to five pages. Complainant: Cytek Biosciences, Inc., which filed the complaint and a § 210.8(b) submission on October 8, 2026. Proposed respondents: Beckman Coulter, Inc. of Brea, CA, and Beckman Coulter Biotechnology (Suzhou) Co., Ltd. of China. Products targeted: certain spectral flow cytometry systems and components thereof. Asserted patents: not identified in the notice. Relief sought: limited exclusion order, cease and desist orders, and a bond during the 60-day Presidential review period under 19 U.S.C. 1337(j).

Key Points

  • Complainant: Cytek Biosciences, Inc., which filed the complaint and a § 210.8(b) submission on October 8, 2026.
  • Proposed respondents: Beckman Coulter, Inc. of Brea, CA, and Beckman Coulter Biotechnology (Suzhou) Co., Ltd. of China.
  • Products targeted: certain spectral flow cytometry systems and components thereof.
  • Asserted patents: not identified in the notice.
  • Relief sought: limited exclusion order, cease and desist orders, and a bond during the 60-day Presidential review period under 19 U.S.C. 1337(j).
exclusion ordercease & desist

More on this topic

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