This is the slogging match that has been taking place in two recent hearings in the Patents Court. By using a combination of cyclones the Dyson Appliance is able to efficiently filter out dirt. This does away with any need for replacement paper bags. The court was asked by Dyson to find that Hoover had infringed their patent. This is, effectively, a reward for the intellectual endeavour required to invent the product.
Patents are concerned with how something is done.
Must have an application this is in an industrial sense so it must be exploitable and possible. It must also not belong to an excluded class of subjects which include discoveries, methods, artworks, or processes. It is also important to recognise that there are differences between UK and, for example, USA law in this area. The most obvious is that computer software and business methods are not, generally, patentable here. Hoover sought to show that Dyson s Patent was not innovative.