Another of the company's products developed by Takamine was a pure form of adrenaline. The compound was patented in 1900 and trademarked as "Adrenalin." Because of the similarity of this name to "Adrenaline," the use of the alternative name "epinephrine" for generics was mandated in the United States and is used to this day. Parke-Davis filed a lawsuit against H. K. Mulford Company alleging infringement of its Adrenalin patents. The ruling in favor of Parke-Davis by Judge Learned Hand is considered crucial to modern patent law.