The U.S. Patent and Trademark Office today published a patent application created by Apple, detailing a method for the extensive waterproofing of various components within a device, possibly an iPhone, thus creating a completely waterproof smartphone without the need of a special case (via Patently Apple).

Originally filed in September of 2013, the patent application describes a "hydrophobic coating" to be layered onto integral parts within a device, like its printed circuit board. Apple describes achieving this using a "plasma-assisted chemical vapor deposition (PACVD) process" that would adhere the coating substance onto the surface of the printed circuit board in such a way as to not take up much additional room in the already small casing of a smartphone.

waterproof patent

In the bigger picture, immersing electronic devices in water generally has predictably negative results. Through testing it has been determined that high voltage power components are more likely to short or malfunction after only brief exposure to liquids or moisture. More specifically, exposed metal areas having high voltage differentials in close proximity can easily experience short circuit events when corrosion or water immersion bridges the gap between such areas.

By providing an insulating layer or barrier around these highly susceptible parts, water resistance can be substantially increased without obscuring functional openings leading into a device housing of a particular electronic device. A thin hydrophobic (i.e., water resistant) conformal coating having a thickness between at least one and ten microns can be applied to a substrate using a plasma-assisted chemical vapor deposition (PACVD) process. The PACVD process charges the surface of the substrate so that the coating can be bonded to the charged surface.

Though not completely waterproof as Apple's new patent intends a device to be, Tim Cook recently stated that the company's upcoming Apple Watch will in fact be a bit more water resistant than previously thought. He stated that he wears his personal Apple Watch everywhere, "even in the shower." If so, the Watch will be the company's first device with such a water resistant claim.

While the patent application doesn't specifically state what device the waterproof process could be attributed to, it's easy to see the company reasoning the method for use on iPhone and iPad. Although, like with all other patents, the practicality of a completely waterproof iPhone launching anytime soon is highly unlikely, but it's always an interesting glimpse behind the scenes regarding what the company may be considering for its future.

Top Rated Comments

YahonMaizosz Avatar
141 months ago
Great.. I guess the Samsung Galaxy S7 is going to be waterproof again.. :rolleyes:
Score: 18 Votes (Like | Disagree)
newagemac Avatar
141 months ago
Did Liquipel not patent this? They've been showing off the same technology at CES for a few years now...

I was wondering the same thing - how can this really deserve a patent when there are already similar solutions.

Further - liquipel seems more comprehensive than isolated to specific areas

Do people still not understand how patents work? I'm sure Liquipel patented their method for waterproofing. And here we see Apple patenting their own method. Ideas (like waterproofing a device) can't be patented. Only methods to do so can be patented.

Ideally there will be hundreds of different patented methods to accomplish an idea (from many different companies/entrepreneurs/innovators) and the best one wins in the marketplace. Then when the patents expire, humanity gets to use them all.
Score: 6 Votes (Like | Disagree)
keysofanxiety Avatar
141 months ago
My Xoeria Z3 is waterproof. Why is Apple lagging here?
In my experience in the tech world, saying anything is waterproof suddenly gives consumers the attitude that the phone can be bashed about, freely used in the shower/bath, and generally they get angrier when it fails.

To advertise a product as 'waterproof' suddenly opens up a whole new world of problems - if the phone fails because the internal components are liquid damaged, would that be covered under warranty? Would there be grounds to go through consumer rights, because the phone was advertised as waterproofed and yet was damaged by water? Would liquid damage still not be covered under warranty, in which case why advertise it as being waterproof?

If liquid damage is covered under warranty on a phone advertised as being waterproof, then that means the manufacturer is accepting a much larger liability -- one that could simply be avoided by waterproofing the phone, but not advertising or confirming that this is the fact.

With the greatest of respect, Sony using and heavily advertising waterproofing on their Xperia Z3 as one of many features to try and stand out in a profit-struggling market (Android phones) is very different to the consistently top-selling iPhone suddenly becoming waterproofed. If Apple reject one warranty claim, then everybody will hear about it, the news will go ballistic, and they'll probably have a lawsuit on their hands. You must appreciate the difference.
Score: 6 Votes (Like | Disagree)
NT1440 Avatar
141 months ago
Did Liquipel not patent this? They've been showing off the same technology at CES for a few years now...

If you read the patent, it describes a method for waterproofing, not a product for waterproofing.

Basically they give a negative or positive charge to a component, and then apply the plasma process with the opposite charge to create an extremely thin layer of protection.

This isn't a "we patented waterproofing" patent, which would not be valid anywhere. This is a patent for Apple's specific method of implementing waterproofing.

----------

Do people still not understand how patents work? I'm sure Liquipel patented their method for waterproofing. And here we see Apple patenting their own method. Ideas (like waterproofing a device) can't be patented. Only methods to do so can be patented.

Ideally there will be hundreds of different patented methods to accomplish an idea (from many different companies/entrepreneurs/innovators) and the best one wins in the marketplace. Then when the patents expire, humanity gets to use them all.

This guy gets it!

I don't understand why people don't get what a patent is.
Score: 5 Votes (Like | Disagree)
LordQ Avatar
141 months ago
Source? I never knew this.

Sounds like he's trolling.

Reminds me when people thought that iOS 7 (or was it 8?) made the phone unshatterable.
Score: 5 Votes (Like | Disagree)
Loucifer Avatar
141 months ago
Just alerting you to the typo, hydroponic below is of course a typo for hydrophobic.

Keep up the good work x

Originally filed in September of 2013, the patent application describes a "hydroponic coating" to be layered onto integral parts within a device, like its printed circuit board. Apple describes achieving this using a "plasma-assisted
Score: 4 Votes (Like | Disagree)

Popular Stories

iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
iPhone 14 Pro Dynamic Island

iPhone 18 Pro Leak Adds New Evidence for Under-Display Face ID

Monday December 8, 2025 4:54 am PST by
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker. According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
iOS 26

Apple Seeds Second iOS 26.2 Release Candidate to Developers and Public Beta Testers

Monday December 8, 2025 10:18 am PST by
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found. Registered developers and public beta testers can download the betas from the Settings app on...
iPhone 17 Pro Cosmic Orange

10 Reasons to Wait for Next Year's iPhone 18 Pro

Monday December 1, 2025 2:40 am PST by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
Johny Srouji

Apple's Chipmaking Chief Johny Srouji Responds to Report About Him Potentially Leaving

Monday December 8, 2025 9:23 am PST by
Apple's chipmaking chief Johny Srouji has reportedly indicated that he plans to continue working for the company for the foreseeable future. "I love my team, and I love my job at Apple, and I don't plan on leaving anytime soon," said Srouji, in a memo obtained by Bloomberg's Mark Gurman. Here is Srouji's full memo, as shared by Bloomberg:I know you've been reading all kind of rumors and...
Johny Srouji

Apple Chip Chief Johny Srouji Could Be Next to Go as Exodus Continues

Sunday December 7, 2025 10:41 am PST by
Apple's senior vice president of hardware technologies Johny Srouji could be the next leading executive to leave the company amid an alarming exodus of leading employees, Bloomberg's Mark Gurman reports. Srouji apparently recently told CEO Tim Cook that he is "seriously considering leaving" in the near future. He intends to join another company if he departs. Srouji leads Apple's chip design ...
Foldable iPhone 2023 Feature 1

Apple to Make More Foldable iPhones Than Expected

Tuesday December 9, 2025 9:59 am PST by
Apple has ordered 22 million OLED panels from Samsung Display for the first foldable iPhone, signaling a significantly larger production target than the display industry had previously anticipated, ET News reports. In the now-seemingly deleted report, ET News claimed that Samsung plans to mass-produce 11 million inward-folding OLED displays for Apple next year, as well as 11 million...
Intel Inside iPhone Feature

Apple's Return to Intel Rumored to Extend to iPhone

Friday December 5, 2025 10:08 am PST by
Intel is expected to begin supplying some Mac and iPad chips in a few years, and the latest rumor claims the partnership might extend to the iPhone. In a research note with investment firm GF Securities this week, obtained by MacRumors, analyst Jeff Pu said he and his colleagues "now expect" Intel to reach a supply deal with Apple for at least some non-pro iPhone chips starting in 2028....
google pixel 10

Switching Between iPhone and Android Will Get Easier With New Apple and Google Collaboration

Monday December 8, 2025 11:10 am PST by
Apple and Google are teaming up to make it easier for users to switch between iPhone and Android smartphones, according to 9to5Google. There is a new Android Canary build available today that simplifies data transfer between two smartphones, and Apple is going to implement the functionality in an upcoming iOS 26 beta. Apple already has a Move to iOS app for transferring data from an Android...
Apple Fitness Plus expansion hero

Apple Fitness+ Coming to 28 New Regions With Digital Voice Dubbing

Monday December 8, 2025 6:19 am PST by
Apple today announced that Fitness+ is expanding to 28 new markets on December 15 in the service's largest international rollout since launch, accompanied by new language dubbing and a K-Pop music genre. Apple Fitness+ will become available in Chile, Hong Kong, India, the Netherlands, Singapore, Taiwan, and additional regions on December 15, with Japan scheduled to follow early next year....