Ranbaxy infringing lipitor patent : Pfizer
Pfizer has sued Ranbaxy Laboratories, accusing the company of infringing a US patent for the best-selling cholesterol medicine lipitor. Pfizer says Ranbaxy's US unit has applied to the US Food and
Pfizer has sued Ranbaxy Laboratories, accusing the company of infringing a US patent for the best-selling cholesterol medicine lipitor. Pfizer says Ranbaxy's US unit has applied to the US Food and