Apple says it can take pulse oximetry out of Apple Watch -- but shouldn't have to
Apple is urging the Federal Court to stay the Apple Watch ban until all appellate proceedings are over, at the same time as insisting that there are ignored rules that could've halted the ban in the first place.

Apple Watch Series 9 and Apple Watch Ultra
Monday's Federal Circuit filing from Masimo revealed that Apple had managed to convince U.S. Customs and Border Protection that it could import current-gen Apple Watch units to the United States without the allegedly patent-infringing blood oxygen features. In a new filing, Apple says it shouldn't be asked to go to those lengths at all.
In a January 15 filing with the US Court of Appeals for the Federal Circuit, Apple says it supports its motion to stay the International Trade Commission (ITC) ban on the Apple Watch until the end of the appeals process. The ITC has already filed its opposition to the proposed stay, which would extend the existing one on the ban for a longer period of time.
However, Apple's motion, as explained by IP-Fray, says that the Apple Watch maker is still suffering irreparable harm from the sales ban, despite Customs clearing versions without the problematic feature. Indeed, Apple goes on to insist that the ITC decision is one that could not stand, because ITC's rules aren't being applied properly.
The chief issue is that a U.S. import ban requires that the complainant commercialize the patented invention in the U.S. in some form, be it in an actual product or via licensing. Apple says that the product was being designed but wasn't readily available to purchase, meaning the patent wasn't properly commercialized.
Apple proposes that if this was an acceptable standard, "complainants with CAD software and a future product idea [would have] access to [U.S. import bans]."
Masimo's W1 watch is sold "in de minimis [trivial] quantities in the U.S., argues Apple, with the W1 not sold in the consumer channel, but more the clinical channel. Furthermore, Masimo's Freedom' watch "has never been sold," Apple offers.
The ITC's decision to waive some arguments is also raised, including a theory that Masimo waited 13 years after a provisional patent application to file a continuation application just after the launch of the Apple Watch, to try and incorporate the product into its patent designs.
For the patent itself, Apple also insists it is capable of prevailing in court over whether Masimo's patents are valid or not.
Read on AppleInsider
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https://patents.google.com/patent/US10945648B2/en
https://patents.google.com/patent/US10912502B2/en
This might be helpful too https://www.inquartik.com/blog/apple-watch-masimo-pulse-oximeter-litigation/
And absolutely, it's a minor feature for the Apple Watch. They have to weigh the benefits of including a feature that infringes on a patent versus removing it and redesigning so it doesn't infringe. For most companies, it's always better not to pay a licensing fee and design around any patents.
A couple of years later apple by way of a coincidence had a technology that infringed on Masimo technology.
One of three things happend.
1) Apple accidentally copied Masimo technology.
2) The team apple poached refreshed it knowledge of Masimo technology. Without apple knowledge.
3) Apple told their poached team that we hired you to copy it so do it.
I think Apple thinks it has so much money it can push anyone out of its way.
Anyone who think Masimo technology is the same as the junk you buy for $30 on Amazon is sniffing glue.
The fact that the team from Masimo was able to recreate a technology that they developed at Masimo years later at apple. Should be all the judge needs to hear.
“wherein the protrusion comprises opaque material configured to substantially prevent light piping and comprises one or more chamfered edges” is the patent for which hardware infringement was cited by ITC. Huh? An opaque plastic rim around the O2 sensor on the bottom of watch? I bet the Masimo W1 watch as that feature. I don't know about you but this sounds ridiculously trivial. Masimo may be a troll if that is their trade secret 'invention' they are litigating on. If Masimo loses and has all of their patents invalidated , it may be schadenfreude time.