Recent Cases

FNM Corporation v Dramcock International

The claimant owned a patent relating to the composition of a water-based cooling mixture.  The first defendant had manufactured product for the claimant but began to manufacture on behalf of the second defendant, replacing part of the second defendant’s composition with an element which the claimant alleged led to infringement.  The defendants accepted that their acts would have amounted to infringements but argued that the patent was anticipated and obvious.  Arnold J agreed with the defendants and revoked the patent but dismissed their counterclaim for unjustified threats because the claimant had no reason to suspect its patent was invalid when it issued the threats.