Could go on for years or they could settle already as Center did. GreenShift not seeking a Preliminary Injunction to halt the accused infringers makes one wonder? https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B_ch8gAs4lCcZGI4ZjVlNWUtNzIwMS00MTQ2LTk3NzUtOGY1MzRkY2FjOWFi&hl=en_US http://en.wikipedia.org/wiki/Preliminary_injunction