9. Origin of an invention 

While the claim must always be directed to technical features (and not, for example, merely to an idea), it is important for the examiner to bear in mind when assessing whether an inventive step is involved that an invention may, for example, be based on the following:

(i)devising a solution to a known problem 

Example: the problem of permanently marking farm animals such as cows without causing them pain or damaging their hide has existed since farming began. The solution ("freeze-branding") consists in applying the discovery that the hide can be permanently depigmented by freezing.

(ii)arriving at an insight into the cause of an observed phenomenon (the practical use of this phenomenon then being obvious) 

Example: the agreeable flavour of butter is found to be caused by minute quantities of a particular compound. As soon as this insight has been arrived at, the technical application comprising adding this compound to margarine is immediately obvious.

Many inventions are of course based on a combination of the above possibilities. For example, the arrival at an insight and the technical application of that insight may both involve using inventive faculty.