Application of Middleton

HATFIELD, Associate Judge.

This is an appeal from the decision of the Board of Appeals of the United States Patent Office affirming the rejection by the Primary Examiner of claims 17, 18, and 19 in appellant’s application for a patent for an invention for a method of introducing reactants to a chemical process. Claim 16 of the application was allowed by the board.

Claim 17, which is typical of the three rejected claims, reads: “In an alkylation process which includes reaction of an olefin with an isoparaffin in the presence of a liquid acid catalyst; the method of admixing fresh catalyst and…