This is a delightfully over the top patent. Granted in December, 2017, this patent describes an adjustable mechanical snooze function on a watch with an alarm.
I say this is over the top because watches with alarms are rare enough. It seems unlikely that anyone would actually manufacture one with a snooze feature (prove me wrong if they exist already), let alone an adjustable snooze.
The mechanism by which the snooze is achieved is pretty straight froward. There's a rack and cam (pictured above). The angle of the rack determines the duration of the snooze, and the cam has multiple points where it can set the angle of the cam.
This is really one of those patents that would make an absurdly high-end watch. Would I use this if I had it on a watch? Of course I would. Would I ever buy one? I cannot imagine a world where I would.
Status: Patent Application (allowed in US 5/7/18, patent to issue), pending elsewhere in Europe and the world as of publication.
Description: This is such a clever idea. The basic concept is to take the relatively mundane day-night complication and make it really special, by having the moon in the day-night complication also display the phase of the moon.
The patent application discloses a couple of different gearings to make the mechanism work, but requires that the moon phase be part of the day-night, and that the aperture for the moon phase be off center, as it naturally would be.
What it means: This would allow Blancpain the exclusive right to manufacture, import, sell, or license this dual complication in any country where they are granted the patent. Blancpain would have that exclusive right until July 4, 2036, as long as they continue to pay regular fees to maintain the patent. They do not have to make watches with this complication, but they really should. It's very cool.