Patent 12171916

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

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PTAB activity (1)

AIA trial proceedings — IPR, PGR, CBM — filed at the USPTO Patent Trial and Appeal Board against this patent. Sourced directly from the PTAB Trial API.

  • PGR2025-00078PGRfiled Sep 5, 2025vs. Terumo BCT, Inc.Discretionary Denial

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Cases on file (2)

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Specific litigation cases in our database that name US patent 12171916. The free-form analysis below may also discuss cases beyond this list.

Litigation summary

Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.

✓ Generated

As a patent attorney, I can report the following known litigation involving US patent 12,171,916 as of April 26, 2026.

District Court Litigation

1. Haemonetics Corp. v. Fresenius Kabi USA LLC et al.

  • Plaintiff(s): Haemonetics Corporation
  • Defendant(s): Fresenius Kabi USA, LLC; Fresenius Kabi AG; Fenwal, Inc.
  • Jurisdiction: U.S. District Court for the Northern District of Illinois
  • Case Number: 1:25-cv-08680
  • Filing Date: An initial complaint was filed on July 25, 2025, followed by a First Amended Complaint on October 6, 2025.
  • Outcome or Current Status: This case is currently active. Haemonetics alleges that the Aurora Xi Plasmapheresis System infringes upon three of its patents, including US patent 12,171,916.

2. Haemonetics Corp. v. Terumo BCT Inc.

  • Plaintiff(s): Haemonetics Corporation
  • Defendant(s): Terumo BCT, Inc.
  • Jurisdiction: U.S. District Court for the District of Colorado
  • Case Number: 1:25-cv-01409
  • Filing Date: May 5, 2025
  • Outcome or Current Status: This case is ongoing. The lawsuit claims that Terumo BCT's Rika plasma systems use Haemonetics' patented technology for calculating "pure plasma" volume, a key feature of the invention described in US patent 12,171,916.

U.S. Patent and Trademark Office (USPTO) Proceedings

1. Terumo BCT Inc. v. Haemonetics Corp.

  • Petitioner: Terumo BCT Inc.
  • Patent Owner: Haemonetics Corp.
  • Jurisdiction: Patent Trial and Appeal Board (PTAB)
  • Case Number: PGR2025-00077
  • Filing Date: September 5, 2025
  • Outcome or Current Status: A petition for Post-Grant Review (PGR) was filed challenging the validity of US patent 12,171,916. On March 10, 2026, the PTAB declined to institute the trial on procedural grounds.

Generated 5/13/2026, 12:21:19 AM