- Markush doctrine
- /markash doktran/ The doctrine permits an applicant for a patent where there is no known subgeneric term which would include elements which applicant found useful and exclude those which are not, to employ a generic term limited to the elements found to be operative and recognizes as unobjectionable as to form, claims containing a coined subgeneric expression. In re Swenson, C.C.P.A., 132 F.2d 336
Black's law dictionary. HENRY CAMPBELL BLACK, M. A.. 1990.