Masimo Sues Apple for Stealing Trade Secrets for Health Monitoring Functions in Apple Watch

Masimo, a medical technology company that designs pulse oximetry devices, has filed a lawsuit against Apple accusing the Cupertino company of stealing trade secrets and improperly using Masimo inventions related to health monitoring in the Apple Watch.

According to Bloomberg, Masimo claims that Apple stole secret information by pretending to have a working relationship with Masimo, and then hiring Masimo employees. Masimo also believes the Apple Watch is infringing on 10 Masimo patents.

applewatchseries5
Masimo, and its spinoff company Cercacor, claim that Masimo's technology for non-invasive health monitoring helped Apple overcome performance issues with the Apple Watch. Apple allegedly relied on Masimo tech when developing the light-based heart rate sensor used in the Apple Watch, among other technologies.

According to Masimo, Apple first contacted the company in 2013 and asked to meet for a potential collaboration, with Apple asking to "understand more" about Masimo's products to potentially integrate Masimo technology into future Apple devices. After what Masimo considered productive meetings, Apple began hiring away important employees.

Ahead of when the Apple Watch was released, Apple hired Michael O'Reilly, who had served as the Chief Medical Officer and EVP of Medical Affairs at Masimo. He has been working on Health Special Projects at Apple, and had a hand in the development of the Apple Watch.

O'Reilly wasn't the only hire from Masimo, as Apple also took on other former Masimo employees along with employees from other health-related companies during the time the Apple Watch was being designed. Marcelo Lamego, who served as CTO of Cercacor, for example, joined Apple not long after O'Reilly.

Masimo says Apple received confidential information from its hires, and launched a targeted effort to obtain "information and expertise."

Masimo and Cercacor are aiming to block further use of their patented inventions and are asking for unspecified damages. The two companies also want to add their engineers to four patents that were granted to Lamego after leaving the Cercacor.

Popular Stories

iPhone 17 Pro Render Front Page Tech

iPhone 17 Pro Launching Later This Year With These 10 New Features

Sunday March 23, 2025 10:00 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. iPhone 17 Pro's alleged design via Front Page Tech Below, we recap key changes rumored for the iPhone 17 Pro models as of March 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone...
iCloud General Feature Redux

iPhone Users Who Pay for iCloud Storage Receive a New Perk

Thursday March 20, 2025 12:01 am PDT by
If you pay for iCloud storage on your iPhone, Apple has a new perk for you, at no additional cost. The new perk is the ability to create invitations in the Apple Invites app for the iPhone, which launched in the App Store last month. In the Apple Invites app, iCloud+ subscribers can create invitations for any occasion, such as birthday parties, graduations, baby showers, and more. Anyone ...
Generic iOS 19 Feature Mock

iOS 19 Coming in June With These New Features

Thursday March 20, 2025 2:04 pm PDT by
While the first iOS 19 beta is still more than two months away, there are already plenty of rumors about the upcoming software update. Below, we recap the key iOS 19 rumors so far. visionOS-Like Design In January, the YouTube channel Front Page Tech revealed a redesigned Camera app that is allegedly planned for iOS 19. According to Front Page Tech host Jon Prosser, the Camera app...
iOS 18

Top 5 New Features Coming in iOS 18.4

Friday March 21, 2025 3:26 pm PDT by
We're not getting new Siri Apple Intelligence features in iOS 18.4 as expected, but the upcoming update does have quite a few new additions that will be worth upgrading for. We've rounded up the five best features to look forward to, and if you're not running the beta, you can expect to get access to these in early April. Priority Notifications If you have an iPhone or iPad that supports...
airpods pro 2 gradient

AirPods Pro 3 Launch Now Just Months Away: Here's What We Know

Tuesday March 18, 2025 9:13 am PDT by
Despite being released over two years ago, Apple's AirPods Pro 2 continue to dominate the wireless earbud market. However, with the AirPods Pro 3 expected to launch in 2025, anyone thinking of buying Apple's premium earbuds may be wondering if the next generation is worth holding out for. Apart from their audio and noise-canceling performance, which are generally regarded as excellent for...
Generic iOS 18

Apple Seeds iOS 18.4 and iPadOS 18.4 Release Candidate With Priority Notifications, Ambient Music and More

Monday March 24, 2025 10:07 am PDT by
Apple today seeded the release candidate versions of upcoming iOS 18.4 and iPadOS 18.4 updates to developers for testing purposes, with the software coming a week after Apple released the fourth betas. iOS 18.4 and iPadOS 18.4 can be downloaded from the Settings app on a compatible device by going to General > Software Update. With iOS 18.4, Apple is adding the Priority Notifications...
Foldable iPhone 2023 Feature Iridescent Search

Foldable iPhone Expected to Launch Next Year, Costing Around $2,000

Monday March 24, 2025 3:43 am PDT by
Apple will launch its long-rumored foldable iPhone next year with a ~$2,000 premium price tag attached, expects well-connected Bloomberg reporter Mark Gurman. Gurman's comments on Apple's launch plans for its first foldable device appeared in the Q&A section of his latest Power On newsletter. Earlier this month, the reporter said Apple's foldable iPhone could be arriving "as early as 2026,"...
Windows Vista

Apple Might Be Having Its Windows Vista Moment, Says Analyst

Thursday March 20, 2025 6:52 am PDT by
Is Apple experiencing a "Vista-like drift into systemically poor execution?" That was a question posed by well-known technology analyst Benedict Evans, in a recent blog post covering Apple's innovation and execution, or seemingly lack thereof as of late. He is referring to Microsoft's Windows Vista operating system, which was widely criticized when it launched in 2007 due to software bugs,...

Top Rated Comments

swingerofbirch Avatar
68 months ago
Masimo is not at all a fly by night company. They're one of the gold standards if not the gold standard for oximetry in hospital settings, along with various other parameters.

And interestingly, their consumer product, the MightySat, had been an Apple Store exclusive for a while. It's still sold in their online store, possibly the retail stores as well. I assumed they had a good relationship with Apple due to that, also the fact that they have almost non-existent Android support for the MightySat.
Score: 13 Votes (Like | Disagree)
coolfactor Avatar
68 months ago
If Apple did (a) meet with the company, and then (b) hired the employees for their knowledge and skills, then I side with Masimo on this. While I love my Apple Watch, I don't want to see them trample over smaller inventive talent in the marketplace, and especially claim that they came up with the ideas entirely in-house.
Score: 11 Votes (Like | Disagree)
cmaier Avatar
68 months ago

If Apple did (a) meet with the company, and then (b) hired the employees for their knowledge and skills, then I side with Masimo on this. While I love my Apple Watch, I don't want to see them trample over smaller inventive talent in the marketplace, and especially claim that they came up with the ideas entirely in-house.
Hiring someone for their knowledge and skills is the main reason you hire someone.
Hiring someone without knowledge and skills is dumb.
Score: 9 Votes (Like | Disagree)
cmaier Avatar
68 months ago

Did Apple claim that this tech is their innovation? If they did then with this development it feels awkward :)
Why does everyone read a news article citing the PR department at a company which is suing Apple and assume that everything that is said is true?
Score: 8 Votes (Like | Disagree)
Mikey44 Avatar
68 months ago

Many have been in the race to achieve non-invasive glucose readings for a long time. It is the holy grail of non-invasive monitoring and will be a major breakthrough in medical technology when announced. There are some companies closer to achieving this than others and I would strongly doubt Apple would start from scratch considering non-invasive monitoring companies have already begun working towards this achievement. I may be biased because I work at Masimo Corporation, however I wouldn't put it past Apple to try and license the best monitoring technology already in the market rather than start from scratch. I for one would certainly love to see Masimo technology in a wearable Apple device...I think that would be awesome!
Well... This may have occurred, just not the way that LightSpectrum expected or wanted it to.
Score: 7 Votes (Like | Disagree)
mannyvel Avatar
68 months ago
Well, they bring up a couple of issues, but really the only thing that's important is the patent infringement; all the rest of it is sort of BS. Non-competes are invalid in California, so the "hiring away employees" is irrelevant.

And in any case does the information in the employee's head belong to the company or the employee?
Score: 5 Votes (Like | Disagree)