Docket Nexus — Federal court records.
Company · Medical Devices & Equipment

Masimo Corporation

Federal civil lawsuits naming Masimo Corporation, a Medical Devices & Equipment company.

Ticker
Nasdaq: MASI
Business
Electromedical & Electrotherapeutic Apparatus
Headquarters
Irvine, CA
Incorporated in
Delaware
SEC CIK
937556

Masimo Corporation is a public company in Electromedical & Electrotherapeutic Apparatus, based in Irvine, CA (traded on Nasdaq as MASI, incorporated in Delaware). It appears in 23 federal civil lawsuits in this index, most often as a defendant (15 of 23). These cases are most often Patent and Civil Rights matters, filed between 1999 and 2025, most frequently in District Court, D. Delaware. The most common causes of action are Patent Infringement, Employment Discrimination, and Breach of Contract. Frequent opposing parties include Philips Electronics North America Corporation, Mindray Ds USA, Inc, and Apple Inc.

23
Lawsuits
15
As Defendant
8
As Plaintiff
4
Open
19
Terminated
1999–2025
Span
6 mo
Median Duration
0.9 cases/yrPredominantly defendant · 65%Patent-heavy · 61%Activity steady

Cases by State

AL — 1 casesAZ — 0 casesAR — 0 casesCA — 0 casesCO — 0 casesCT — 0 casesDE — 8 casesDC — 2 casesFL — 2 casesGA — 0 casesID — 0 casesIL — 1 casesIN — 0 casesIA — 0 casesKS — 0 casesKY — 0 casesLA — 0 casesME — 0 casesMD — 0 casesMA — 1 casesMI — 0 casesMN — 0 casesMS — 0 casesMO — 0 casesMT — 0 casesNE — 0 casesNV — 0 casesNH — 0 casesNJ — 3 casesNM — 0 casesNY — 3 casesNC — 0 casesND — 0 casesOH — 0 casesOK — 0 casesOR — 0 casesPA — 0 casesRI — 0 casesSC — 0 casesSD — 0 casesTN — 0 casesTX — 2 casesUT — 0 casesVT — 0 casesVA — 0 casesWA — 0 casesWV — 0 casesWI — 0 casesWY — 0 cases

Open Cases Over Time

1999peak 4 open2025

Case Types Over Time

19992025
PatentCivil RightsContractFederal Tax / Statutory ActionsLabor

Filings by Year

19992025

23 Cases — Newest First