Assignment history

Inventors

• Robert Lercari: Likely employed by Radian Memory Systems LLC at the time of filing.
• Alan Chen: Likely employed by Radian Memory Systems LLC at the time of filing.
• Mike Jadon: Likely employed by Radian Memory Systems LLC at the time of filing.
• Craig Robertson: Likely employed by Radian Memory Systems LLC at the time of filing.
• Andrey V. Kuzmin: Likely employed by Radian Memory Systems LLC at the time of filing.

All five inventors assigned their interest in the patent application to Radian Memory Systems, LLC on the filing date, 2021-10-20 (recorded 2021-10-21, Reel 062777/0684). This is a standard initial assignment and does not indicate an unusual pattern of inventors departing within 12 months of filing.

Original assignee

The entity named as the "Original Assignee" on Google Patents for US11307995 is Radian Memory Systems LLC.

• Shipped a product embodying the claims: Yes, Radian Memory Systems (under its various legal forms) developed and sold solid-state drives (SSDs), such as the RMS-325 PCIe card, which incorporated their "Symphonic CFM" (Cooperative Flash Management) technology. This technology, aimed at improving flash storage management by replacing traditional Flash Translation Layers (FTLs) with cooperative host-SSD firmware management, aligns directly with the hierarchical address virtualization and configurable block device allocation described in the patent.
• Primary line of business: Initially, Radian Memory Systems focused on developing and marketing advanced, software-defined flash storage solutions for enterprise and data center applications. However, by late 2020, their product timeline updates ceased, and the company was characterized as having been "cast out by the industry". Following a patent transfer in 2024 to a new Radian Memory Systems LLC entity tied to Fortress Investment Group, the primary business shifted to patent assertion.
• Current status: Radian Memory Systems, Inc. (the corporate form existing before the 2024 assignment) appears to be non-operational in terms of product development or sales. The current legal entity owning the patent, Radian Memory Systems LLC (a Texas LLC formed in 2024 and tied to Fortress Investment Group LLC), is actively engaged in patent litigation, having sued Samsung for infringement of this and other related patents.

Assignment timeline

• 2021-10-20 (executed) / recorded 2021-10-21 — Reel 062777/0684

  • Conveyance: ASSIGNMENT
  • Assignor: CHEN, ALAN, JADON, MIKE, KUZMIN, ANDREY V., ROBERTSON, CRAIG, LERCARI, ROBERT
  • Assignee: RADIAN MEMORY SYSTEMS, LLC
  • Correspondent: KENYON & KENYON LLP, ONE BROADWAY, NEW YORK, NEW YORK 10004. This correspondent recurs in this chain.
  • Context: Initial assignment of patent rights from inventors to the original corporate entity filing the patent application.

• 2021-10-20 (executed) / recorded 2021-10-21 — Reel 062777/0687

  • Conveyance: CHANGE OF NAME
  • Assignor: RADIAN MEMORY SYSTEMS, LLC
  • Assignee: RADIAN MEMORY SYSTEMS, INC.
  • Correspondent: KENYON & KENYON LLP, ONE BROADWAY, NEW YORK, NEW YORK 10004. This correspondent recurs in this chain.
  • Context: Internal corporate reorganization changing the legal entity type from LLC to Inc.

• 2024-05-20 (executed) / recorded 2024-05-21 — Reel 065532/0858

  • Conveyance: ASSIGNMENT
  • Assignor: RADIAN MEMORY SYSTEMS, INC.
  • Assignee: RADIAN MEMORY SYSTEMS LLC
  • Correspondent: KENYON & KENYON LLP, ONE BROADWAY, NEW YORK, NEW YORK 10004. This correspondent recurs in this chain.
  • Context: Transfer of patent portfolio from the former operating company to a new entity (tied to Fortress Investment Group) for the purpose of patent assertion.

Timeline diagram

timeline
    title Ownership of US 11307995
    2021 : Inventors assign to Radian Memory Systems LLC
         : Radian Memory Systems LLC changes to Inc
    2022 : Patent Issued
    2024 : Radian Memory Systems Inc assigns to Radian Memory Systems LLC
         : Litigation filed against Samsung

NPE / troll-pattern signals

1. Shell-entity transfer — present. On 2024-05-20 (Reel 065532/0858), Radian Memory Systems, Inc. assigned the patent to Radian Memory Systems LLC. This new "Radian Memory Systems LLC" was formed in Texas in April 2024, is tied to Fortress Investment Group LLC, and its managing member is an apparent Fortress entity (FIP II UST LP). It is described as a plaintiff in patent litigation, with an address (C/O FORTRESS INVESTMENT GROUP) consistent with a licensing-focused entity.

2. Known asserter in the chain — present. The current assignee, Radian Memory Systems LLC (the Texas entity formed in 2024), is tied to Fortress Investment Group LLC. Fortress Investment Group is widely recognized as a major player in patent assertion, often operating through various subsidiaries.

3. Repeat correspondent across the chain — present. KENYON & KENYON LLP (One Broadway, New York, New York 10004) is listed as the correspondent of record for all three assignments: Reel 062777/0684, Reel 062777/0687, and Reel 065532/0858.

4. Cascading transfers — not present. The recorded transfers are spaced out, with the first two being internal changes on the same date, and the third occurring nearly three years later, not a rapid succession of assignments through multiple shell entities.

5. Pre-litigation transfer — present. The assignment from Radian Memory Systems, Inc. to Radian Memory Systems LLC occurred on 2024-05-20 (Reel 065532/0858). Radian Memory Systems LLC subsequently filed a patent infringement lawsuit against Samsung (2:24-cv-01073) in the Eastern District of Texas, with reports indicating a filing in late 2024. This transfer date is less than six months prior to the initiation of the lawsuit, indicating a transfer arranged in anticipation of litigation.

6. Bankruptcy fire-sale — not present. There is no indication from the provided information that Radian Memory Systems, Inc. underwent bankruptcy proceedings. The transfer appears to be a strategic decision to enable patent assertion.

7. Privateering — unclear. While the original operating company, Radian Memory Systems, Inc., developed products before the patent transfer, and the new entity is asserting patents against former industry players, it's not explicitly confirmed that Radian Memory Systems, Inc. (the original operating entity) is actively orchestrating assertions against its current competitors. The indication is that Radian was "cast out by the industry" and is now seeking royalties for its technology that it alleges was adopted by others without proper licensing.

8. Defensive aggregator (anti-NPE) — not present. The current assignee is tied to Fortress Investment Group LLC, which is known for patent assertion, not defensive aggregation.

Verdict

NPE — high confidence

This patent exhibits several strong NPE characteristics. The transfer of the patent from the original operating company, Radian Memory Systems, Inc., to a new entity, Radian Memory Systems LLC, which is tied to the known patent asserter Fortress Investment Group LLC, on 2024-05-20 (Reel 065532/0858) is a key indicator. This transfer occurred less than six months before the new LLC initiated litigation against Samsung, clearly signaling a pre-litigation transfer for assertion purposes. Furthermore, the consistent use of KENYON & KENYON LLP as the correspondent across all assignments points to a coordinated and specialized approach to managing the patent portfolio for assertion [Reel 062777/0684, Reel 062777/0687, Reel 065532/0858].

For verification, refer to the USPTO Assignment Center search for US11307995: https://assignmentcenter.uspto.gov/