You have come up with a process, a device, or a product that solves a particular technical problem? However, you believe that it is so simple and obvious it must surely not be patentable…Think again! Actually, you might be using hindsight knowledge.
Once the solution to a particular problem is known, it is of course tempting to think it was easy or straightforward to imagine. This is called hindsight. However, this is not how inventive step is assessed at the European Patent Office (EPO). Indeed, it seems to be obvious now … but was it really obvious before the solution was actually known?