Plaintiff

Greenthread, LLC

19 cases as plaintiff.

Cases
19
Active
10
9 closed
Filed
2022–2023
Top venue
D. Delaware
6 cases
Also appears as a defendant in 7 cases → View as defendant

Company profile

Greenthread, LLC is a Texas-based private company formed in October 2004. It was co-founded by G.R. Mohan Rao, the named inventor on the patents the company asserts, and Philip W. John Jr. Greenthread, LLC is a separate entity from Green Threads, LLC, a Maryland-based IT services provider. Public information regarding Greenthread's employee count or revenue is not available. Reports indicate the company's litigation has been backed by investment manager Empyrean Capital Partners.

Greenthread is a non-practicing entity (NPE) that generates revenue through patent licensing and litigation. The company has no known products or services and its activities center on asserting a portfolio of patents related to semiconductor fabrication. The patents, acquired from inventor and company director G.R. Mohan Rao, generally cover semiconductor devices with "graded dopant regions," a technology intended to improve transistor and device performance.

The company's patent-litigation posture is exclusively that of a plaintiff, which is typical for an NPE. As of May 2026, Greenthread has filed at least 10 lawsuits as a plaintiff and has not been named as a defendant in any tracked cases. Its litigation campaign has been spread across several federal jurisdictions, including the U.S. District Courts for the Western and Eastern Districts of Texas and the District of Delaware.

Greenthread has sued a wide range of major semiconductor manufacturers, automotive companies, and other technology firms. Notable defendants include Intel, General Motors, NXP, ON Semiconductor, STMicroelectronics, and Monolithic Power Systems. The company's litigation efforts have faced significant headwinds; multiple defendants have challenged the validity of Greenthread's patents before the Patent Trial and Appeal Board (PTAB). In some instances, these inter partes review (IPR) proceedings have resulted in the invalidation of patent claims, impacting Greenthread's district court cases.

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Filing activity

2022: 2 cases'222023: 10 cases10'23
Cases filed per year with Greenthread, LLC as plaintiff.

Greenthread, LLC v. Texas Instruments Incorporated

likely stayed/administratively closed pending PTAB (outcome not confirmed)
Docket:
2:23-cv-00157-JRG
Filed:
2023-04-06
Patents:919050291901959190842919048191902229190014
π Greenthread, LLCΔ Texas Instruments Incorporated

Greenthread sued Texas Instruments in E.D. Tex., asserting six patents including the '502 patent as Count II. The representative accused product was the BQ25123, and the case was a vehicle for TI's IPR2024-00773; outcome was not confirmed in available sources and was likely stayed/administratively closed pending PTAB.

Greenthread, LLC v. Intel Corporation et al.

severed/transferred (Intel claims); Dell claims addressed under customer-suit/sever-and-transfer analysis
Docket:
6:22-cv-00105-ADA
Filed:
2022-01-27
Patents:919050291901959190842919048191902229190014
π Greenthread, LLCΔ Intel CorporationΔ Dell Inc.Δ Dell Technologies Inc.

Greenthread sued Intel, Dell Inc., and Dell Technologies Inc. in W.D. Tex., asserting the '502 patent as part of its six-patent family. The court severed the Intel claims and transferred them to Oregon; claims against Dell as Intel customer were addressed under the customer-suit/sever-and-transfer analysis.

Greenthread, LLC v. Monolithic Power Systems, Inc.

stayed/administratively closed pending PTAB IPRs
Docket:
1:23-cv-00579
Terminated:
2024-04-23
Patents:919050291901959190842919048191902229190014
π Greenthread, LLCΔ Monolithic Power Systems, Inc.

Greenthread sued Monolithic Power Systems in D. Del., asserting the '502 patent as part of its family. The case was stayed/administratively closed on Apr. 23, 2024, pending PTAB IPRs including IPR2024-00469 on the '502, with no damages or infringement findings.