Interesting article from Annalee Newitz on io9.com:
If you’re making a flicking gesture with a pen near your computer, watch out. Microsoft may own the rights to the gesture you’re making. And if you like to draw letters of the alphabet using one penstroke per letter, you may one day find yourself paying a licensing fee to Xerox.
It sounds crazy, but tech companies have been patenting physical gestures for almost two decades now. In a world ruled by touchscreens, Kinect, and Guitar Hero, these businesses don’t want people making certain gestures without paying for it. Find out which gestures you’re making that may be infringing somebody’s patents.
People have been claiming exclusive ownership of physical moves for a while. Famous choreographer Martha Graham’s company copyrighted many of her iconic dances, and even sued a man who said the work was actually his. A few years ago, the guy who copyrighted the Electric Slide dance asked YouTube to remove a video of people dancing his copyrighted moves (YouTube complied, but after some legal negotiation the choreographer made his dance available under a more open Creative Commons license.)
More on Annalee Newitz on io9.com