title: Patents on native technology challenged.
authors.forename: L
authors.initials: L
authors.lastname: Wolfgang
mesh_terms: D002617:Chemical Industry; D007194:India; D007306:Insecticides; D036701:Limonins; D010330:Patents as Topic; D014197:Trees; D014315:Triterpenes; D014481:United States
chemical_list: D007306:Insecticides; D036701:Limonins; D014315:Triterpenes; C010329:azadirachtin