Untitled case

This patent infringement litigation, Cellspin Soft, Inc. v. LifeScan, Inc., case number 2:24-cv-00286, was filed on April 29, 2024, in the Eastern District of Texas. The plaintiff, Cellspin Soft, Inc., is asserting U.S. Patent 11234121 against the defendant, LifeScan, Inc.. The case has been assigned to District Judge Rodney Gilstrap.

Cellspin Soft, Inc. is a patent assertion entity (PAE) that has filed numerous patent infringement lawsuits across various industries, often asserting patents related to data transfer and synchronization. LifeScan, Inc. is an operating company known for its diabetes monitoring products, including blood glucose meters and testing supplies. The specific accused products, services, or technology by LifeScan are not explicitly detailed in the initial search results, but based on LifeScan's business, they likely involve data handling functionalities within their diabetes management devices or accompanying software/apps. U.S. Patent 11234121 generally pertains to systems and methods for data communication and synchronization, though a more detailed one-line technical sketch would require reviewing the patent itself.

The procedural posture of the case places it in the Eastern District of Texas, Marshall Division, a venue historically favored by patent holders due to its fast-paced dockets and perceived plaintiff-friendly reputation in patent litigation. Judge Rodney Gilstrap is a prominent judge in this district, known for overseeing a significant number of patent cases. The case's notability may stem from Cellspin Soft's extensive history of patent assertions, making it part of a broader pattern of NPE litigation. Any ongoing or related inter partes reviews (IPRs) at the Patent Trial and Appeal Board (PTAB) concerning US Patent 11234121 would also be a significant factor, but current search results do not indicate any such linkages.

This section details the key legal developments and outcomes for the patent infringement litigation Cellspin Soft, Inc. v. LifeScan, Inc., case number 2:24-cv-00286, in the Eastern District of Texas.

Filing & Initial Pleadings

• Complaint Filed (2024-04-29): Cellspin Soft, Inc. initiated the lawsuit by filing its complaint against LifeScan, Inc. in the Eastern District of Texas. The complaint asserts infringement of U.S. Patent 11234121.

Parallel PTAB IPR Proceedings

• Related IPRs Identified (IPR2024-00769 and IPR2025-00103): While the initial search results did not explicitly link to IPRs for US Patent 11234121, a related IPR (IPR2025-00103) was filed by LifeScan, Inc. and other joining petitioners (Senseonics Holdings, Inc. and Ascensia Diabetes Care Holdings AG) challenging U.S. Patent No. 9,900,766, which is also asserted by Cellspin Soft, Inc. in a separate but related litigation (2:24-cv-00263). LifeScan's petition in IPR2025-00103 sought joinder with an earlier instituted IPR, IPR2024-00769, filed by TikTok Inc. against the same patent, U.S. Patent No. 9,900,766. These IPRs concern a different patent (U.S. Patent No. 9,900,766) than the primary patent at issue in the LifeScan case (U.S. Patent 11234121). However, the involvement of Cellspin Soft, Inc. as the patent owner in these parallel IPRs indicates a broader strategy of patent enforcement and defense. No IPRs directly on US Patent 11234121 were identified in the search results.

As of the current date (2026-06-16), the case remains active, and further developments regarding pre-trial motions, claim construction, discovery, or trial events are not yet publicly detailed in the provided search results.

Cellspin Soft, Inc. is represented by attorneys from Garteiser Honea PLLC and Findlay Craft, P.C..

Here is the identified counsel of record for Cellspin Soft, Inc.:

• Randall Garteiser

  • Role: Lead Counsel
  • Firm: Garteiser Honea PLLC
  • Office Location: San Francisco, CA (based on previous Cellspin cases where he represented the plaintiff)
  • Experience Note: Has extensive experience in intellectual property matters and has represented Cellspin Soft, Inc. in numerous patent litigation cases, often pursuing cases against large tech companies.

• Christopher Honea

  • Role: Lead Counsel
  • Firm: Garteiser Honea PLLC
  • Office Location: (Likely San Francisco, CA, based on firm's involvement in other Cellspin cases)
  • Experience Note: Works alongside Randall Garteiser and has decades of experience handling IP matters, planning for patent litigation from the outset.

• Michael Fuller

  • Role: Counsel
  • Firm: Garteiser Honea PLLC
  • Office Location: (Office location not specified in search results, but associated with Garteiser Honea)
  • Experience Note: Also represents Cellspin Soft, Inc. in patent-related matters.

• Scott Fuller

  • Role: Counsel
  • Firm: Garteiser Honea PLLC
  • Office Location: (Office location not specified, but associated with Garteiser Honea)
  • Experience Note: Represented Cellspin Soft, Inc. in prior patent litigation.

• René Vazquez

  • Role: Counsel
  • Firm: Garteiser Honea PLLC
  • Office Location: (Office location not specified, but associated with Garteiser Honea)
  • Experience Note: Represented Cellspin Soft, Inc. in prior patent litigation.

• Peter Corcoran

  • Role: Counsel
  • Firm: Garteiser Honea PLLC (though he also has Corcoran IP Law PLLC)
  • Office Location: (Office location not specified, but associated with Garteiser Honea and Corcoran IP Law PLLC)
  • Experience Note: Has represented Cellspin Soft, Inc. and other patent owners in IP matters.

• Local Counsel (from Findlay Craft, P.C.)

  • Firm: Findlay Craft, P.C.
  • Experience Note: Often acts as local counsel in the Eastern District of Texas, a common practice for firms not based in the district. Specific attorney names from Findlay Craft, P.C. were not readily available in the initial search results for this specific case.

As of June 16, 2026, LifeScan, Inc. is represented by attorneys from Alston & Bird LLP.

Here is the identified counsel of record for LifeScan, Inc.:

• Ziyong Sean Li
  • Role: Counsel
  • Firm: Alston & Bird LLP
  • Office Location: Not specified in the appearance notice, but Alston & Bird has multiple offices known for patent litigation.
  • Experience Note: Filed a Notice of Attorney Appearance on behalf of LifeScan, Inc. on July 10, 2024, in this case.

While specific roles like "lead counsel" or "local counsel" are not explicitly designated in the initial appearance notice, it is common for firms like Alston & Bird to handle significant aspects of patent defense. The provided search results did not indicate any in-house counsel appearances for LifeScan in this matter. Previous patent litigation involving LifeScan, Inc. has seen representation from various firms, including Patterson, Belknap, Webb and Tyler LLP, O'Melveny & Myers LLP, Morgan, Lewis & Bockius LLP, and Lathrop Gage LLP. However, for this specific case (2:24-cv-00286), Ziyong Sean Li of Alston & Bird is the only attorney for LifeScan whose appearance has been explicitly identified in the recent docket entries.