Same catalyst, solvent, or component thereof used in both syntheses:
(under subclass 310) Subject matter wherein a catalyst, solvent, diluent, or a material which makes up part of such substance is used in both of the syntheses.
(1) Note. Use of different portions of an extraneous material in both syntheses is not sufficient for placement of a patent in this subclass.
(2) Note. Where both syntheses use an extraneous agent drawn from and returned to a common pool or reservoir, the patent is placed here.
(3) Note. Use of a material as a catalyst in one reaction and as a reactant in a second reaction, e.g., use of HF catalyst from one reaction to form alkyl fluoride in another, does not provide a basis for classification in this subclass.
