Patent – Grant. The parties were involved in the manufacture of fire suppression systems. The defendant company patented a new system, and the claimant disputed the originality of the patent. The hearing officer dismissed the claimant's application. The claimant appealed to the Patents Court. The court held that, on the evidence, the hearing officer had been entitled to resort to the burden of proof in the way that he had done, and that his decision had not been wrong.