I invented a game whereby I took the game called 4-Square and raised it 7 feet in the air and so you play it like a 4-way volleyball game ... 4-Square in the air.
I obtained U.S. Patent No. 7,608,000, entitled A System for Playing a game. From the abstract:
A multiplayer game, having rules with aspects of the games of Four Square and Volleyball, is played with an apparatus that can optionally be respectively disassembled and set up.
Claim 1 [is really long and not easily conducive to clear formatting, but if someone else wants to, go for it. -JSH]
I recently found a game being sold called 9 Square in the Air. It's a copy of my game using 9 squares instead of 4. My patent discloses multiple alternative embodiments of my base design, including embodiments with more than four squares.
9 Square has two design patents, D656,995, issued April 3, 2012, and D650,445, issued December 13, 2011.
How was this guy able to get a patent? Do I have any recourse?