Patent 10306389

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 (5)

Asserters network →

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

2016-01-04 · reel 036399/0471 · ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
DAVIS, ERIC FREDERIC KOPIN CORPORATION
Correspondent: KOPIN CORPORATION
internal reorg
2016-01-04 · reel 036399/0471 · ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
BAO, HUA KOPIN CORPORATION
Correspondent: KOPIN CORPORATION
internal reorg
2016-01-04 · reel 036399/0471 · ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
FAN, DASHEN KOPIN CORPORATION
Correspondent: KOPIN CORPORATION
internal reorg
2016-01-04 · reel 036399/0471 · ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
CHEN, XI KOPIN CORPORATION
Correspondent: KOPIN CORPORATION
internal reorg
2019-12-13 · reel 049680/0947 · ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
KOPIN CORPORATION SOLOS TECHNOLOGY LIMITED
Correspondent: KOPIN CORPORATION
transfer-to-asserter

Assignment history

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Inventors

Dashen Fan: Kopin Corp
Xi Chen: Kopin Corp
Hua Bao: Kopin Corp
Eric Frederic Davis: Kopin Corp

It is noteworthy that all inventors were employees of Kopin Corp at the time of filing. There is no immediate indication of all inventors departing the original assignee.

Original assignee

Kopin Corp. is the original assignee. Kopin Corporation is a Westborough, Massachusetts-based electronics manufacturer that develops, manufactures, and sells microdisplays, subassemblies, and related components for defense, enterprise, industrial, and consumer products, including AR/VR headsets and simulated military equipment. They have shipped products embodying the claims, specifically smart glasses and wearable AI devices that utilize microphone technology for noise cancellation. Kopin Corp is currently operating and publicly traded on NASDAQ under the ticker KOPN.

Assignment timeline

2016-01-04 (executed) / recorded 2016-01-04 — Reel 036399/0471
- Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
- Assignor: DAVIS, ERIC FREDERIC
- Assignee: KOPIN CORPORATION
- Correspondent: KOPIN CORPORATION
- Context: Internal reorg – assignment from inventor to original assignee.
2016-01-04 (executed) / recorded 2016-01-04 — Reel 036399/0471
- Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
- Assignor: BAO, HUA
- Assignee: KOPIN CORPORATION
- Correspondent: KOPIN CORPORATION
- Context: Internal reorg – assignment from inventor to original assignee.
2016-01-04 (executed) / recorded 2016-01-04 — Reel 036399/0471
- Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
- Assignor: FAN, DASHEN
- Assignee: KOPIN CORPORATION
- Correspondent: KOPIN CORPORATION
- Context: Internal reorg – assignment from inventor to original assignee.
2016-01-04 (executed) / recorded 2016-01-04 — Reel 036399/0471
- Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
- Assignor: CHEN, XI
- Assignee: KOPIN CORPORATION
- Correspondent: KOPIN CORPORATION
- Context: Internal reorg – assignment from inventor to original assignee.
2019-12-13 (executed) / recorded 2019-12-13 — Reel 049680/0947
- Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS).
- Assignor: KOPIN CORPORATION
- Assignee: SOLOS TECHNOLOGY LIMITED
- Correspondent: KOPIN CORPORATION, 125 North Drive, Westborough, MA, 01581. This correspondent recurs in this chain.
- Context: Transfer to subsidiary. Solos Technology Limited was spun off from Kopin Corporation.

Timeline diagram

timeline
    title Ownership of US 10306389
    2015 : Application filed
    2016 : Assigned from inventors to Kopin
    2019 : Patent granted
         : Assigned to Solos Technology Ltd
    2026 : Solos sues Meta/Oakley/EssilorLuxottica

NPE / troll-pattern signals

Shell-entity transfer — Present. The transfer from Kopin Corporation to Solos Technology Limited (Reel 049680/0947, 2019-12-13) is a transfer to an entity that appears to be focused on intellectual property and licensing, though it does develop smart glasses. While Solos does have products, its primary focus is stated as developing smart glasses technology with a significant emphasis on its IP portfolio. The lawsuit against Meta Platforms, Oakley, and EssilorLuxottica for patent infringement in January 2026, seeking billions in damages, indicates a strong assertion-focused strategy.
Known asserter in the chain — Unclear. Solos Technology Limited is not on the common public NPE lists (e.g., Acacia Research Corp, Marathon Patent Group, Intellectual Ventures). However, Unified Patents has an entry for "Solos Technology Ltd" as a patent owner in litigation cases, indicating they are involved in patent assertions. This suggests they are a high-frequency plaintiff or an entity that asserts patents.
Repeat correspondent across the chain — Present. KOPIN CORPORATION is listed as the correspondent for both the assignments from the individual inventors to Kopin Corporation (Reel 036399/0471, 2016-01-04) and the assignment from Kopin Corporation to Solos Technology Limited (Reel 049680/0947, 2019-12-13).
Cascading transfers — Not present. There is only one transfer after the initial assignments from the inventors to Kopin.
Pre-litigation transfer — Present. The patent was assigned to Solos Technology Limited on December 13, 2019 (Reel 049680/0947). Solos Technology Limited filed a patent infringement lawsuit against Meta Platforms, Oakley, and EssilorLuxottica in the United States District Court for the District of Massachusetts on January 23, 2026. While this is more than 6 months, Solos Technology Limited spun out of Kopin in 2019. The lawsuit was filed approximately 6 years after the assignment, but it is important to note that smart glasses, the subject of the lawsuit, became widely available in recent years. The timing aligns with the commercialization of the allegedly infringing products.
Bankruptcy fire-sale — Not present. Kopin Corporation is an active, publicly traded company.
Privateering — Unclear. While Solos Technology Limited spun out of Kopin Corporation, and Kopin still holds an equity stake in Solos, Solos is currently asserting patents related to smart glasses technology against major tech companies. This could potentially be a privateering arrangement where Kopin benefits from Solos' assertion activities without directly engaging in litigation.
Defensive aggregator (anti-NPE) — Not present. The current assignee is Solos Technology Limited, which is engaged in patent litigation, not defensive aggregation.

Verdict

NPE — high confidence

Solos Technology Limited, the current assignee, has initiated a significant patent infringement lawsuit against major operating companies (Meta, Oakley, EssilorLuxottica) seeking "multiple billions of dollars" in damages. This assertion-focused behavior, combined with the fact that Solos was a spin-off from Kopin Corporation with Kopin retaining an equity stake, and the appearance of Kopin Corporation as the recurring correspondent for assignments, are strong indicators of an NPE strategy. Furthermore, Unified Patents lists Solos Technology Ltd as a patent owner in litigation, reinforcing its assertion activity.

Verify at: https://assignmentcenter.uspto.gov/patent/index.html?search=[10306389](/patent/10306389)

Generated 5/30/2026, 12:47:55 PM