Facebook's Oculus Rift, which released around the same time the patent was filed, also features hybrid Fresnel lenses, although Rift's are undoubtedly finer in appearance than many on the market, including HTC Vive and the most recent Google Daydream.
Still though, optical artifacts such as God Rays persist which should ideally disappear as the display hardware matures around it. Putting a conventional lens at the center where the headset's best viewing position lies though (aka 'the sweet spot') and shifting Fresnel ridges to the periphery may strike a good balance between optics clarity and overall weight.
It's true that many patents never see productization, although we haven't yet laid eyes on the company's fabled next iteration of Rift
, so there's no telling what lies ahead.