Patent 9347554

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.

Active provider: Google · gemini-2.5-flash

Ownership chain (1)

Asserters network →

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

  1. 2013-03-14 · reel 029992/0421 · Assignment

    DVORAK, PAUL A.; METZGER, RUSTIN G.; MOBERG, CARL; STORER, CORWIN E.CATERPILLAR INC.

    Correspondent: MICHAEL L. BARCLAY · CATERPILLAR INC.

    Original assignment from inventors to employer

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

  • Rustin G. Metzger (Caterpillar Inc.)
  • Carl Moberg (Caterpillar Inc.)
  • Corwin E. Storer (Caterpillar Inc.)
  • Paul A. Dvorak (Caterpillar Inc.)

Original assignee

Caterpillar Inc. is a leading manufacturer of construction and mining equipment, diesel and natural gas engines, industrial gas turbines, and diesel-electric locomotives. They produce products embodying the claims of the patent, such as skid steer loaders and other hydrostatic drive work machines. Caterpillar Inc. is currently an operating company.

Assignment timeline

  • 2013-03-14 (executed) / recorded 2013-03-14 — Reel 029992/0421
    • Conveyance: Assignment
    • Assignor: DVORAK, PAUL A.; METZGER, RUSTIN G.; MOBERG, CARL; STORER, CORWIN E.
    • Assignee: CATERPILLAR INC.
    • Correspondent: MICHAEL L. BARCLAY, CATERPILLAR INC. 100 N.E. ADAMS STREET, PEORIA, ILLINOIS 61629-6490
    • Context: Original assignment from inventors to employer

There are no subsequent assignment records for US9347554 in the USPTO Assignment Center beyond the initial assignment from the inventors to Caterpillar Inc.

Timeline diagram

timeline
    title Ownership of US 9347554
    2013 : Assigned to Caterpillar Inc.
    2016 : Issued to Caterpillar Inc.

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 Caterpillar Inc.. There are no subsequent transfers or other recorded legal events that would indicate a change of ownership or a transfer to a known NPE. The patent remains with its original operating company assignee.

Inventors

  • Rustin G. Metzger (Caterpillar Inc.)
  • Carl Moberg (Caterpillar Inc.)
  • Corwin E. Storer (Caterpillar Inc.)
  • Paul A. Dvorak (Caterpillar Inc.)

Original assignee

Caterpillar Inc. is a leading manufacturer of construction and mining equipment, diesel and natural gas engines, industrial gas turbines, and diesel-electric locomotives. They produce products embodying the claims of the patent, such as skid steer loaders and other hydrostatic drive work machines. Caterpillar Inc. is currently an operating company.

Assignment timeline

  • 2013-03-14 (executed) / recorded 2013-03-14 — Reel 029992/0421
    • Conveyance: Assignment
    • Assignor: DVORAK, PAUL A.; METZGER, RUSTIN G.; MOBERG, CARL; STORER, CORWIN E.
    • Assignee: CATERPILLAR INC.
    • Correspondent: MICHAEL L. BARCLAY, CATERPILLAR INC. 100 N.E. ADAMS STREET, PEORIA, ILLINOIS 61629-6490
    • Context: Original assignment from inventors to employer

There are no subsequent assignment records for US9347554 in the USPTO Assignment Center beyond the initial assignment from the inventors to Caterpillar Inc..

Timeline diagram

timeline
    title Ownership of US 9347554
    2013 : Assigned to Caterpillar Inc.
    2016 : Issued to Caterpillar Inc.

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 for US9347554 is from the inventors to Caterpillar Inc., recorded on 2013-03-14. There are no subsequent transfers or other recorded legal events in the USPTO Assignment Center that would indicate a change of ownership or a transfer to a known NPE, or any other NPE/troll-pattern signals. The patent appears to remain with its original operating company assignee.

Generated 5/27/2026, 12:45:35 PM