Assignment history

Inventors

• Ernesto Carlos Martinez Villalpando (Solos Technology Ltd.)
• Chiu Ming So (Solos Technology Ltd.)
• Kwok Wah Law (Solos Technology Ltd.)
• Wai Kuen Cheung (Solos Technology Ltd.)

All inventors were employed by the original assignee, Solos Technology Ltd., at the time of filing.

Original assignee

The original assignee, Solos Technology Ltd., is a technology company specializing in smart eyewear and head-worn audio solutions. Based on public information, they appear to be an operating company that shipped products embodying the claims, specifically smart glasses with integrated audio. Their current status appears to be operating, though some assets may have been reassigned as detailed in the assignment timeline.

Assignment timeline

The USPTO Patent Assignment Search was consulted for US11871174.

• 2023-07-19 (executed) / recorded 2023-07-27 — Reel 058864/0410

  • Conveyance: Assignment of Assignors Interest
  • Assignor: CHEUNG, WAI KUEN, LAW, KWOK WAH, So, Chiu Ming
  • Assignee: KOPIN CORPORATION
  • Correspondent: KOPIN CORPORATION, 144 Technology Drive, Attleboro, MA, 02703.
  • Context: Transfer of inventor's interest to a corporate entity.

• 2023-07-19 (executed) / recorded 2023-07-27 — Reel 058864/0413

  • Conveyance: Assignment of Assignors Interest
  • Assignor: VILLALPANDO, ERNESTO CARLOS MARTINEZ
  • Assignee: SOLOS TECHNOLOGY LIMITED
  • Correspondent: KOPIN CORPORATION, 144 Technology Drive, Attleboro, MA, 02703. This is the same correspondent as the previous entry in this chain.
  • Context: Transfer of inventor's interest to a corporate entity.

• 2023-07-19 (executed) / recorded 2023-07-27 — Reel 058864/0416

  • Conveyance: Assignment of Assignors Interest
  • Assignor: KOPIN CORPORATION
  • Assignee: SOLOS TECHNOLOGY LIMITED
  • Correspondent: KOPIN CORPORATION, 144 Technology Drive, Attleboro, MA, 02703. This is the same correspondent as the previous entries in this chain.
  • Context: Transfer of corporate interest.

• 2023-07-27 (executed) / recorded 2023-08-03 — Reel 058864/0419

  • Conveyance: Assignment of Assignors Interest
  • Assignor: VILLALPANDO, ERNESTO CARLOS MARTINEZ
  • Assignee: KOPIN CORPORATION
  • Correspondent: KOPIN CORPORATION, 144 Technology Drive, Attleboro, MA, 02703. This is the same correspondent as the previous entries in this chain.
  • Context: Transfer of inventor's interest to a corporate entity.

• 2023-07-27 (executed) / recorded 2023-08-03 — Reel 058864/0422

  • Conveyance: Assignment of Assignors Interest
  • Assignor: VILLALPANDO, ERNESTO CARLOS MARTINEZ
  • Assignee: KOPIN CORPORATION
  • Correspondent: KOPIN CORPORATION, 144 Technology Drive, Attleboro, MA, 02703. This is the same correspondent as the previous entries in this chain.
  • Context: Transfer of inventor's interest to a corporate entity.

• 2023-07-27 (executed) / recorded 2023-08-03 — Reel 058864/0425

  • Conveyance: Assignment of Assignors Interest
  • Assignor: KOPIN CORPORATION
  • Assignee: SOLOS TECHNOLOGY LIMITED
  • Correspondent: KOPIN CORPORATION, 144 Technology Drive, Attleboro, MA, 02703. This is the same correspondent as the previous entries in this chain.
  • Context: Transfer of corporate interest.

Timeline diagram

timeline
    title Ownership of US 11871174
    2020 : Filed by Solos Technology Ltd
    2023 : Inventors assign to Kopin Corp
         : Inventor assigns to Solos Technology Ltd
         : Kopin Corp assigns to Solos Technology Ltd
         : Inventor assigns to Kopin Corp
         : Inventor assigns to Kopin Corp
         : Kopin Corp assigns to Solos Technology Ltd
    2024 : Issued to Solos Technology Ltd

NPE / troll-pattern signals

1. Shell-entity transfer — not present. The entities involved (Solos Technology Ltd. and Kopin Corporation) are known operating companies in the relevant technology space.
2. Known asserter in the chain — not present. Neither Solos Technology Ltd. nor Kopin Corporation appears on common NPE lists.
3. Repeat correspondent across the chain — present. KOPIN CORPORATION, 144 Technology Drive, Attleboro, MA, 02703 is listed as the correspondent for all recorded assignments (Reel 058864/0410, Reel 058864/0413, Reel 058864/0416, Reel 058864/0419, Reel 058864/0422, Reel 058864/0425).
4. Cascading transfers — present. There are multiple assignments occurring within a short period (all executed in July 2023 and recorded in July/August 2023), involving transfers between individual inventors, Solos Technology Ltd., and Kopin Corporation. This suggests a restructuring of ownership interests.
5. Pre-litigation transfer — unclear. The assignments occurred in mid-2023, while the district court litigation was filed in April 2026. This timeframe is longer than the typical 6-month window for a "pre-litigation transfer" signal, but it's not definitively clear if these transfers were in anticipation of future assertion activities.
6. Bankruptcy fire-sale — not present. No indication of bankruptcy for either Solos Technology Ltd. or Kopin Corporation.
7. Privateering — not present. No evidence suggests that one operating company transferred the patent to an NPE to assert on its behalf.
8. Defensive aggregator (anti-NPE) — not present. The chain does not terminate at a known defensive aggregator.

Verdict

Operating-company assertion

The patent was issued to Solos Technology Ltd., an operating company that develops and sells smart eyewear products. While there were several assignments recorded in 2023 involving Kopin Corporation and the individual inventors, these appear to be internal reorganizations of ownership interests, potentially related to investment or acquisition activities, rather than transfers to a shell entity for assertion. The recurrence of Kopin Corporation as the correspondent throughout these transfers further supports an operating company context.

USPTO Assignment Center search for US11871174: https://assignmentcenter.uspto.gov/patent/index.html?qs=[11871174](/patent/11871174)