South Africa Case Law

McKelvey and Others v Deton Engineering (Pty) Ltd and Another (657/95)

McKelvey and Others v Deton Engineering (Pty) Ltd and Another (657/95) [1997] ZASCA 57; 1998 (1) SA 374 (SCA); [1997] 3 All SA 569 (A); (28 May 1997)

Court

Supreme Court of Appeal

Case number

657/95

Judges

E M Grosskopf, Nienaber, Harms, Schutz, Plewman

The Supreme Court of Appeal held that section 25(7) of the Patents Act adopts the whole contents approach, invalidating several Deton patent claims for lack of novelty.

• Patent Novelty
• Whole Contents Approach
• Prior Claim Approach
• Double Patenting
• Priority Date
• Patent Infringement