Unfortunately, it is a widespread false estimation that the utility model is the protection right of the “common man” and as such is easier to handle. The proper formulation of the description and the claims of the filing for application of an utility model is rather very complex and requires a lot of experience. The utility model is only simpler and quicker to obtain than the patent is. Whether you are provided with effective protection, can only often be seen years later, and then it is mostly too late for rectifications.
With proper handling, the utility model, however, provides the specialist with an effective tool in his defence against copiers. Get advice from your patent attorney. Who tries to save with the application filing , later pays the price in the infringement case. .