Getting a patent for a cannabis product is no more difficult than getting a patent for any other kind of product. However, with a high number of cannabis patent applications being approved, it is likely that many will be challenged for invalidation in the coming years.

Already one of these patents has gone to court in the U.S. District Court for the District of Colorado. In United Cannabis v. Pure Hemp Collective, United Cannabis Corp. claims that Pure Hemp Collective Inc. used a cannabis extract that United Cannabis had a patent on. Pure Hemp filed a motion for partial summary judgment, arguing United Cannabis should not have had a patent on the extract because it was something that occurred naturally. In April, U.S. District Judge William Martinez found the strain was altered and would not have occurred naturally and denied the motion for partial summary judgment. The case is still pending.