Patent 9512025

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. 2015-03-25 · Assignment of Assignors Interest

    KAHLOUT, AHDI EL, GRZESIK, PAUL RICHARD, FRANZEN, DAVID SCOTT, CHUNG, Ren Hua, GLOVER, Brendan William, STEPHENSON, Michael John, KOCATULUM, BULENT, PENG, GaozhuCORNING INCORPORATED

    inventor assignment

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

  • Ren Hua Chung (Corning Inc.)
  • Ahdi El-Kahlout (Corning Inc.)
  • David Scott Franzen (Corning Inc.)
  • Brendan William Glover (Corning Inc.)
  • Paul Richard Grzesik (Corning Inc.)
  • Bulent Kocatulum (Corning Inc.)
  • Gaozhu Peng (Corning Inc.)
  • Michael John Stephenson (Corning Inc.)

All inventors were employed by Corning Inc. at the time of filing, as indicated by the original assignee information. There are no immediate unusual patterns of all inventors departing within 12 months of filing based on the provided data.

Original assignee

The original assignee named on the issued patent US9512025 is Corning Inc. Corning Inc. is an operating company whose primary line of business includes specialty glass, ceramics, and related materials, and they ship products embodying glass manufacturing processes and apparatuses. Corning Inc. is currently an operating company.

Assignment timeline

To provide the most accurate and up-to-date assignment timeline, I would typically search the USPTO Assignment Center directly. However, as an AI, I cannot directly perform live searches on external websites. My current information indicates that as of 2026-05-15, the patent is assigned to Corning Inc. as the original assignee. The Google Patents "Legal status" section indicates "Assigned to CORNING INCORPORATED" on 2015-03-25. This likely refers to an internal recordation or confirmation, rather than an external assignment to a new entity.

Therefore, based on the provided data, the assignment timeline is:

  • 2015-03-25 (executed, likely) / recorded 2015-03-25 (date from Google Patents)
    • Conveyance: Assignment of Assignors Interest
    • Assignor: KAHLOUT, AHDI EL, GRZESIK, PAUL RICHARD, FRANZEN, DAVID SCOTT, CHUNG, Ren Hua, GLOVER, Brendan William, STEPHENSON, Michael John, KOCATULUM, BULENT, PENG, Gaozhu
    • Assignee: CORNING INCORPORATED
    • Correspondent: Not specified in the provided data.
    • Context: Internal inventor assignment to the original corporate assignee.

If the USPTO Assignment Center (https://assignmentcenter.uspto.gov/) were searched, it would provide the official reel and frame numbers and correspondent information for this transaction, and any subsequent assignments. As no other assignments are listed in the provided data, I will proceed with the assumption that this is the full available record.

Timeline diagram

timeline
    title Ownership of US 9512025
    2014 : Filed by Corning Inc
    2015 : Inventors assigned to Corning Inc
    2016 : Issued to Corning Inc

NPE / troll-pattern signals

  1. Shell-entity transfer — not present. The only recorded transfer is from the individual inventors to Corning Inc., a known operating company.
  2. Known asserter in the chain — not present. Corning Inc. is an operating company, not a known NPE.
  3. Repeat correspondent across the chain — unclear. Correspondent information is not provided for the single recorded assignment.
  4. Cascading transfers — not present. Only one assignment is recorded.
  5. Pre-litigation transfer — not present. The assignment to Corning Inc. occurred well before any litigation mentioned (PTAB case filed 2025, ITC cases unspecified but later than 2015).
  6. Bankruptcy fire-sale — not present. Corning Inc. is an active operating company.
  7. Privateering — not present. There is no indication of a transfer to an NPE for assertion on behalf of Corning Inc.
  8. Defensive aggregator (anti-NPE) — not present. The patent remains with Corning Inc.

Verdict

Insufficient data to definitively conclude NPE or operating-company assertion with high confidence based solely on the assignment record. While the patent is currently held by an operating company (Corning Inc.), the lack of detailed correspondent information for the initial inventor assignment, and the limited scope of the assignment record itself (only one transaction), means that further post-issuance assignments would need to be checked directly through the USPTO Assignment Center to make a definitive call on whether this patent has been transferred to an NPE for assertion. The current information only reflects the initial assignment from the inventors to the operating company.

Generated 5/15/2026, 12:48:49 AM