Beg r Patents Appeal Tribunal, Ex parte J R Gelgy SA

Subject Matter

CROWN PRACTICE — Certiorari — Alternative remedy — Patents Appeal Tribunal — Refusal to direct reference to opponents' patent in applicants' specification — Error in law — Risk of infringement — Opponents' remedy by action if patent infringed — Whether opponents should be granted certiorari — Patents Act, 1949, s 9 (1)

[1963] 2 QB 728; [1963] 2 WLR 1007