patft.uspto.gov

Y96r TIL in 1996 the United States Air Force patented a radio device for transmitting audio speech signals (specifically voices) directly into a person’s head.
vNVr TIL that Namco holds a patent which allows only them to make mini-games in loading screens.The patent will expire later this year.
wEpo TIL there has existed, since 1997, a patent for a supposed cure for AIDS, patent #5676977.