In Brazil, HP sued a third party manufacturer for selling compatible cartridges: http://g1.globo.com/tecnologia/noticia/2012/05/hp-resolve-disputa-de-infracao-d

In Brazil, HP sued a third party manufacturer for selling compatible cartridges: http://g1.globo.com/tecnologia/noticia/2012/05/hp-resolve-disputa-de-infracao-de-patente-com-multilaser.html http://g1.globo.com/tecnologia/noticia/2012/05/hp-resolve-di... People would probably think twice when buying a car if you could only fill it with gas from stations allowed by the carmaker.