https://wccftech.com/apple-patent-envisions-stronger-cover-glass-for-iphone-with-spiral-grain-coating/

The iPhone has come a long way, transitioned year over year from the original iPhone to the iPhone 11 Pro. The smartphone has come a long way and it will keep on evolving for better durability. The latest comes in as USPTO or United States Patent & Trademark Office filed a new Apple patent that details a stronger cover glass for future iPhone models.

The new Apple patent explains how Spiral Grain Coatings on the iPhone's glass structure can make it more resistant to damage and durable. The iPhone is not the only device that the coating can be applied to as the technology can be used on other products like the iPad, iMac, and even the Apple Watch. Apple's website also states that "Creating tougher glass isn't rocket science. It's molecular science".