Docket Nexus — Federal court records.
Company · Cybersecurity

Shenzhen Dejiayun Network Technology Co., Ltd

Federal civil lawsuits naming Shenzhen Dejiayun Network Technology Co., Ltd, a Cybersecurity company.

Public CompanyCybersecurity
Ticker
Nasdaq: MASK
Business
Services-Computer Programming Services
Headquarters
Hong Kong
Incorporated in
D8
SEC CIK
1993097

Shenzhen Dejiayun Network Technology Co., Ltd is a public company in Services-Computer Programming Services, based in Hong Kong (traded on Nasdaq as MASK, incorporated in D8). It appears in 61 federal civil lawsuits in this index, most often as a defendant (31 of 61). These cases are most often Patent and Trademark matters, filed between 1994 and 2026, most frequently in District Court, N.D. Illinois. The most common causes of action are Patent Infringement, Trademark, and Copyright Infringement. Frequent opposing parties include The Partnerships and Unincorporated Associations Identified on Schedule A, The Individuals, Corporations, Limited Liability Companies, Partnerships, and Unincorporated Associations Identified on Schedule A, and Dongguan Fangde Network Technology Co., Ltd.

61
Lawsuits
31
As Defendant
30
As Plaintiff
18
Open
43
Terminated
1994–2026
Span
6 mo
Median Duration
1.8 cases/yrPredominantly defendant · 51%Patent-heavy · 41%Activity rising

Cases by State

AL — 0 casesAZ — 0 casesAR — 0 casesCA — 0 casesCO — 0 casesCT — 0 casesDE — 1 casesDC — 1 casesFL — 11 casesGA — 2 casesID — 0 casesIL — 14 casesIN — 0 casesIA — 0 casesKS — 0 casesKY — 0 casesLA — 0 casesME — 0 casesMD — 0 casesMA — 1 casesMI — 0 casesMN — 1 casesMS — 0 casesMO — 0 casesMT — 0 casesNE — 0 casesNV — 1 casesNH — 0 casesNJ — 3 casesNM — 0 casesNY — 3 casesNC — 3 casesND — 0 casesOH — 1 casesOK — 0 casesOR — 0 casesPA — 3 casesRI — 0 casesSC — 0 casesSD — 0 casesTN — 1 casesTX — 12 casesUT — 1 casesVT — 0 casesVA — 0 casesWA — 1 casesWV — 0 casesWI — 1 casesWY — 0 cases

Open Cases Over Time

1994peak 18 open2026

Case Types Over Time

19942026
PatentTrademarkContractCopyrightLabor

Filings by Year

19942026

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Patent25
Trademark14
Contract9
Copyright6
Labor3
Personal Property / Fraud3

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Frequent Opposing Parties

61 Cases — Newest First

Showing 1–50 of 61