Patent 9846887

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 (1)

Asserters network →

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

  1. 2013-10-21 · reel 031021/0458 · Assignment

    HONG, JASON I.; SADEH-KONIECPOL, NORMAN; CRANSHAW, JUSTIN; SCHWARTZ, RAZCARNEGIE MELLON UNIVERSITY

    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

  • Justin Cranshaw (Carnegie Mellon University)
  • Raz Schwartz (Carnegie Mellon University)
  • Jason I. Hong (Carnegie Mellon University)
  • Norman Sadeh-Koniecpol (Carnegie Mellon University)

Original assignee

Carnegie Mellon University is a private research university. Their primary line of business is education and academic research. They do not ship a product embodying the claims. Carnegie Mellon University is currently operating.

Assignment timeline

  • 2013-10-21 (executed) / recorded 2013-10-21 — Reel 031021/0458
    • Conveyance: Assignment
    • Assignor: HONG, JASON I., SADEH-KONIECPOL, NORMAN, CRANSHAW, JUSTIN, SCHWARTZ, RAZ
    • Assignee: CARNEGIE MELLON UNIVERSITY
    • Correspondent: CARNEGIE MELLON UNIVERSITY, OFFICE OF TECHNOLOGY TRANSFER, 4615 FORBES AVE., SUITE 302, PITTSBURGH, PENNSYLVANIA, 15213
    • Context: Internal reorg, assignment of inventors' rights to the original assignee.

Timeline diagram

timeline
    title Ownership of US 9846887
    2013 : Assigned to Carnegie Mellon University
    2017 : Issued to Carnegie Mellon University

NPE / troll-pattern signals

  1. Shell-entity transfer — not present
  2. Known asserter in the chain — not present
  3. Repeat correspondent across the chain — not present
  4. Cascading transfers — not present
  5. Pre-litigation transfer — not present
  6. Bankruptcy fire-sale — not present
  7. Privateering — not present
  8. Defensive aggregator (anti-NPE) — not present

Verdict

Insufficient data
The only recorded assignment is from the inventors to Carnegie Mellon University, the original assignee and a non-commercial entity. There are no subsequent assignments or other recorded transactions to suggest any NPE activity.

USPTO Assignment Center Search for US9846887

Generated 5/27/2026, 12:04:52 AM