Contingencies	6 Months Ended
Jun. 30, 2017
Contingencies
Contingencies	15. Contingencies In February 2016, we received a Paragraph IV certification notice (the “Notice Letter”) regarding an Abbreviated New Drug Application submitted to the U.S. Food and Drug Administration requesting approval to market a generic version of Jakafi (ruxolitinib). The Notice Letter purports to challenge patents covering ruxolitinib phosphate and its use that expire in 2028. The Notice Letter does not challenge the ruxolitinib composition of matter patent, which expires on December 24, 2027. We do not believe there is any kind of loss that is probable or estimable related to this matter at this time.

Contingencies

6 Months Ended

Jun. 30, 2017

15. Contingencies

In February 2016, we received a Paragraph IV certification notice (the “Notice Letter”) regarding an Abbreviated New Drug Application submitted to the U.S. Food and Drug Administration requesting approval to market a generic version of Jakafi (ruxolitinib). The Notice Letter purports to challenge patents covering ruxolitinib phosphate and its use that expire in 2028. The Notice Letter does not challenge the ruxolitinib composition of matter patent, which expires on December 24, 2027. We do not believe there is any kind of loss that is probable or estimable related to this matter at this time.