US 6557994 B1
This is by far the most useful invention of the four I've mentioned here. John Rose really looked into the heart of the problem with wearing glasses....
In all honesty, eye glass wearers always trouble with keeping their glasses sitting upright on the bridge of their nose. This patent is non-obvious, novel, and certainly useful (to those willing to get all the piercings to make this happen).
In actual practice, you need to pierce an internally threaded barbell that would be inserted through the skin above the bridge of your nose. Then you would need to screw on L-shaped magnetic metal pieces that would secure the bifocals on your face. The glasses are reinforced with nose pads. The downside is that you need to screw in the L-shaped pieces on everytime you want to put on the glasses - not to mention that you would be in some serious trouble if someone hit your face.... On the upside, this invention might have some potential use given that the younger generations find excessive body piercings to be fashion forward.
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