Patent 7532808

Assignment history

Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.

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Ownership chain (2)

Asserters network →

Structured records extracted from the assignment-history narrative below. Each entity links to its full ownership-network profile.

  1. 2003-06-12 · reel 011303/0501 · Assignment

    NOKIA CORPORATIONNOKIA CORPORATION

    Correspondent: David R. Buchanan · Buchanan Ingersoll

    internal reorg

  2. 2015-05-09 · recorded 2015-05-27 · reel 035613/0530 · Assignment

    NOKIA CORPORATIONNOKIA TECHNOLOGIES OY

    Correspondent: Walter W. DeLuca · Nokia

    internal reorg

Assignment history

Inventors, original assignee, and the chain of ownership recorded with the USPTO — including the correspondent attorney who recorded each assignment, since shell-LLC chains often share one repeat-player attorney even when the entity names look unrelated. Surfaces NPE / patent-troll patterns: shell-entity transfers, known asserters in the chain, repeat correspondent fingerprints, pre-litigation assignments, and bankruptcy fire-sales.

✓ Generated

Inventors

  • Jani Lainema (Nokia Inc.)

Original assignee

The original assignee on the issued patent is Nokia Inc. At the time of filing, Nokia Inc. would have been involved in the telecommunications and mobile phone industry, likely shipping products embodying video coding technologies. Nokia Inc. is currently a subsidiary of Nokia Technologies Oy, which focuses on technology development and licensing. Nokia as a whole remains an operating company.

Assignment timeline

  • 2003-06-12 (executed) / recorded 2003-06-12 — Reel 011303/0501

    • Conveyance: Assignment
    • Assignor: Nokia Inc.
    • Assignee: Nokia Corporation
    • Correspondent: David R. Buchanan, Buchanan Ingersoll PC, 1801 K St Nw Suite 1000, Washington, DC 20006
    • Context: Internal reorg

  • 2015-05-09 (executed) / recorded 2015-05-27 — Reel 035613/0530

    • Conveyance: Assignment
    • Assignor: Nokia Corporation
    • Assignee: Nokia Technologies Oy
    • Correspondent: Walter W. DeLuca, Nokia, 6000 Connection Dr, Irving, TX 75039
    • Context: Internal reorg

Timeline diagram

timeline
    title Ownership of US 7532808
    2003 : Filed by Nokia Inc
    2003 : Assigned to Nokia Corp
    2009 : Issued
    2015 : Assigned to Nokia Tech Oy

NPE / troll-pattern signals

  1. Shell-entity transfer — not present. The transfers are between Nokia entities (Nokia Inc., Nokia Corporation, Nokia Technologies Oy), which are all parts of an operating company.
  2. Known asserter in the chain — not present. None of the assignees (Nokia Inc., Nokia Corporation, Nokia Technologies Oy) are known NPEs.
  3. Repeat correspondent across the chain — not present. Different correspondents are listed for each assignment: David R. Buchanan of Buchanan Ingersoll PC on 011303/0501 and Walter W. DeLuca of Nokia on 035613/0530.
  4. Cascading transfers — not present. There are only two assignments over a 12-year period, not multiple consecutive transfers in a short timeframe.
  5. Pre-litigation transfer — unclear. While litigation is noted on Google Patents, the specific filing dates of the first infringement suits are not immediately available in the assignment records to definitively link them to the assignment dates. Therefore, it is unclear if any transfer was pre-litigation.
  6. Bankruptcy fire-sale — not present. Nokia Inc. and Nokia Corporation were operating companies at the time of their respective assignments, not undergoing bankruptcy.
  7. Privateering — not present. The transfers are internal to the Nokia group, not to an external NPE.
  8. Defensive aggregator (anti-NPE) — not present. The chain ends at Nokia Technologies Oy, an operating entity, not a defensive aggregator like RPX, AST, LOT Network, Unified Patents, or Open Invention Network.

Verdict

Operating-company assertion
The ownership chain for US7532808 clearly indicates transfers between different entities within the Nokia corporate structure (Nokia Inc. to Nokia Corporation, then to Nokia Technologies Oy, per reels 011303/0501 and 035613/0530). Nokia Technologies Oy is an operating entity focused on technology development and licensing. There are no clear signals of the patent being transferred to a shell entity or a known patent asserter.

Verification: https://assignmentcenter.uspto.gov/

Generated 5/23/2026, 12:46:43 PM