Assignment history

Inventors

• Gleb Yushin: Sila Nanotechnologies Inc.
• Bogdan Zdyrko: Sila Nanotechnologies Inc.
• Addison Shelton: Sila Nanotechnologies Inc.
• Eugene Berdichevsky: Sila Nanotechnologies Inc.
• Igor Luzinov: Sila Nanotechnologies Inc.
• Alexander Jacobs: Sila Nanotechnologies Inc.
• Eerik Hantsoo: Sila Nanotechnologies Inc.
• George Gomes: Sila Nanotechnologies Inc.

All named inventors were associated with Sila Nanotechnologies Inc. at the time of the initial assignment, which occurred on the same day as the patent's filing in 2022.

Original assignee

The original assignee, and current owner, is Sila Nanotechnologies Inc. The company's primary line of business is the development and manufacturing of silicon-anode materials for lithium-ion batteries, aiming to increase energy density for applications such as electric vehicles and consumer electronics. Sila Nanotechnologies Inc. has shipped products embodying aspects of their claims, with their silicon anode material being used in the Whoop 4.0 fitness tracker starting in 2021, and announced for future Mercedes-Benz electric vehicles. Sila Nanotechnologies Inc. is currently an operating company.

Assignment timeline

• 2022-02-09 (executed) / recorded 2022-06-02 — Reel 058869/0147
  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
  • Assignor: JACOBS, ALEX; YUSHIN, GLEB; HANTSOO, EERIK; SHELTON, ADDISON; BERDICHEVSKY, GENE; ZDYRKO, BOGDAN; LUZINOV, IGOR; GOMES, GEORGE
  • Assignee: SILA NANOTECHNOLOGIES, INC.
  • Correspondent: MARINA GRINBLAT; LEYDIG, VOIT & MAYER, LTD.; TWO PRUDENTIAL PLAZA, SUITE 4900; 180 NORTH STETSON AVENUE; CHICAGO, IL 60601-6731
  • Context: Initial assignment from the inventors to the employer (original assignee).

The USPTO Patent Assignment Search at https://assignmentcenter.uspto.gov/ shows only one assignment record for US11374215, which is the initial transfer from the inventors to Sila Nanotechnologies Inc. There are no other recorded assignments post-issuance.

Timeline diagram

timeline
    title Ownership of US 11374215
    2022 : Filed by Sila Nanotechnologies Inc
         : Inventors assigned to Sila Nanotechnologies Inc
    2022 : Issued to Sila Nanotechnologies Inc

NPE / troll-pattern signals

1. Shell-entity transfer — not present. The patent was assigned directly from the inventors to Sila Nanotechnologies Inc., an operating company. There is no evidence of transfer to a licensing-only LLC.
2. Known asserter in the chain — not present. Sila Nanotechnologies Inc. is not identified as a known NPE.
3. Repeat correspondent across the chain — unclear. Only one assignment is recorded, so there is no recurrence within this chain. Without further data on other patents handled by Marina Grinblat or Leydig, Voit & Mayer, Ltd., it's not possible to determine if they are a repeat correspondent for known NPEs.
4. Cascading transfers — not present. There is only one assignment on record.
5. Pre-litigation transfer — not present. No litigation has been identified for this patent, and no transfers occurred prior to any suits.
6. Bankruptcy fire-sale — not present. Sila Nanotechnologies Inc. is an active operating company.
7. Privateering — not present. No evidence of transfer to an NPE to assert on behalf of an operating company.
8. Defensive aggregator (anti-NPE) — not present. The patent remains with the original operating assignee.

Verdict

Insufficient data. Only the initial assignment from inventors to the original assignee, Sila Nanotechnologies Inc., is recorded (Reel 058869/0147, executed 2022-02-09). There are no subsequent transfers to indicate any NPE or defensive aggregator involvement. Sila Nanotechnologies Inc. is an operating company that produces products related to the patent.

Verification link: https://assignmentcenter.uspto.gov/assign-view-result?qid=1103239&pub_nbr=US11374215B2&db=us_pat