Visit any baby store, and you'll see plenty of strange-seeming baby items: booger extractor tool, anyone? (Although strange is in the eye of the beholder, as the product has nearly 400 5-star Amazon reviews.) But take a browse through the U.S. Patent and Trademark Office archives, and you'll find that inventors throughout history have come up with a mind-boggling number of inventions for babies and kids. In honor of Mother's Day, we've pulled a few of the most interesting patents designed to help mother and child.
Tired of bugging your teenager to put his retainer back in? This 1988 patent, for a mouth-mounted alarm device that detects when the retainer has been away for too long, will do the nagging for you.