Patent 8175148

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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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

Nokia Inc. is a Finnish multinational telecommunications, information technology, and consumer electronics corporation. At the time of the patent's priority date (2002-04-23), Nokia was a major manufacturer of mobile phones and telecommunications infrastructure, and it shipped products embodying video coding technologies. Nokia Inc. (the US subsidiary listed as the applicant) is still an operating entity, with its parent company, Nokia Corporation, remaining a significant player in telecommunications equipment and technology.

Assignment timeline

The USPTO Assignment Center search for US patent 8175148 shows no recorded assignments beyond the original grant to Nokia Inc.

Timeline diagram

timeline
    title Ownership of US 8175148
    2007 : Application filed by Nokia Inc
    2012 : Application granted to Nokia Inc
    2026 : Patent expires

NPE / troll-pattern signals

  1. Shell-entity transfernot present
  2. Known asserter in the chainnot present
  3. Repeat correspondent across the chainnot present
  4. Cascading transfersnot present
  5. Pre-litigation transfernot present
  6. Bankruptcy fire-salenot present
  7. Privateeringnot present
  8. Defensive aggregator (anti-NPE)not present

Verdict

Insufficient data
There are no recorded assignments for US 8175148 beyond its initial grant to Nokia Inc., according to the USPTO Assignment Center. Therefore, there is no evidence to suggest any NPE or defensive aggregator activity.

https://assignmentcenter.uspto.gov/#!/patent/8175148

Generated 5/17/2026, 6:46:05 PM