Doesn't mean I Like it - or software patents in general - any more, but it doesn't look like they were as late to this game as their actual launch implied.
[1] http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sec...
Doesn't mean I Like it - or software patents in general - any more, but it doesn't look like they were as late to this game as their actual launch implied.
[1] http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sec...
Dodgeball was created by Crowley (one of the founders of Foursquare) in 2000. Loopt was founded in 2005. Whrrl, buzzd, and brightkite were all founded in 2007. There are probably dozens of other examples.
EDIT: Had the wrong date for Dodgeball. Thanks Batsu!
It looks as though prior art existed well before Facebook even existed. I don't think anyone has anything to worry about.
http://www.inventionstatistics.com/Patent_Litigation_Costs.h...
I did this as a defensive publication for just such a case http://en.wikipedia.org/wiki/Defensive_publication