Assignment history

Inventors

• Andrey V. Kuzmin (Employer: Radian Memory Systems LLC, at the time of filing)
• Mike Jadon (Employer: Radian Memory Systems LLC, at the time of filing)
• Richard M. Mathews (Employer: Radian Memory Systems LLC, at the time of filing)

Original assignee

The original assignee on the issued patent is Radian Memory Systems LLC. The patent's subject matter relates to storage systems, specifically the architecture and management of flash memory and solid-state drives (SSDs). This suggests Radian Memory Systems LLC is an operating company that develops and potentially ships products embodying these claims, such as SSDs or memory controllers. The current legal status of the patent is "Active", and Radian Memory Systems LLC is also listed as the current assignee, indicating they are still operating.

Assignment timeline

• 2020-08-19 (executed) / recorded 2020-08-19 — Reel 053531/0861
  • Conveyance: Assignment
  • Assignor: JADON, MIKE; KUZMIN, ANDREY V.; MATHEWS, RICHARD M.
  • Assignee: Radian Memory Systems, LLC
  • Correspondent: Eric S. Hyman, Blanchard, Krasner & French, San Diego, CA. This correspondent recurs in this chain.
  • Context: Inventors assigned rights to the original assignee.
• 2020-08-19 (executed) / recorded 2020-08-19 — Reel 053531/0878
  • Conveyance: Change of Name
  • Assignor: Radian Memory Systems, LLC
  • Assignee: Radian Memory Systems, Inc.
  • Correspondent: Eric S. Hyman, Blanchard, Krasner & French, San Diego, CA. This correspondent recurs in this chain.
  • Context: Internal corporate reorganization/change of name.
• 2024-05-20 (executed) / recorded 2024-05-20 — Reel 063683/0369
  • Conveyance: Assignment
  • Assignor: Radian Memory Systems, Inc.
  • Assignee: RADIAN MEMORY SYSTEMS LLC
  • Correspondent: Eric S. Hyman, Blanchard, Krasner & French, San Diego, CA. This correspondent recurs in this chain.
  • Context: Internal corporate reorganization/assignment back to LLC structure.

Timeline diagram

timeline
    title Ownership of US 11544183
    2020 : Filed
         : Inventors assign to Radian Memory Systems LLC
         : Radian Memory Systems LLC changes to Inc
    2023 : Issued
    2024 : Radian Memory Systems Inc assigns to Radian Memory Systems LLC

NPE / troll-pattern signals

1. Shell-entity transfer — Not present. All transfers are between variations of "Radian Memory Systems". The company is described as an operating company in the memory/storage sector.
2. Known asserter in the chain — Not present. None of the assignees (Radian Memory Systems LLC or Radian Memory Systems, Inc.) appear on common NPE lists.
3. Repeat correspondent across the chain — Present. Eric S. Hyman of Blanchard, Krasner & French, San Diego, CA, is listed as the correspondent for all three recorded assignments (Reel 053531/0861, Reel 053531/0878, and Reel 063683/0369).
4. Cascading transfers — Not present. While there are two assignments on the same day in 2020, they represent the initial inventor assignment and a corporate name change, not a rapid transfer through chained LLCs to new owners. The subsequent transfer is 4 years later.
5. Pre-litigation transfer — Unclear. The patent's Google Patents page indicates litigation (PTAB case IPR2025-01266 and US case 2:24-cv-01073 in Texas Eastern District Court). The earliest listed litigation filing date is not explicitly provided in the snippets, but the district court case number (2:24-cv-01073) suggests a filing in 2024. The last assignment occurred on 2024-05-20 (recorded 2024-05-20, Reel 063683/0369). Without the exact filing date of the district court case, it's unclear if this assignment falls within 6 months prior.
6. Bankruptcy fire-sale — Not present. There is no indication of bankruptcy proceedings for Radian Memory Systems LLC or Inc.
7. Privateering — Not present. There is no evidence of an operating company transferring the patent to an NPE to assert on their behalf.
8. Defensive aggregator (anti-NPE) — Not present. The chain does not terminate at a known defensive aggregator.

Verdict

Operating-company assertion
The assignment records consistently show ownership by Radian Memory Systems LLC and its corporate variant, Radian Memory Systems, Inc., which is identified as an active entity in the memory/storage system sector. The consistent correspondent across all internal transfers further supports this being an operating company managing its intellectual property, rather than an NPE. The observed litigation is likely direct assertion by the operating company.

USPTO Assignment Center Search for US11544183