The question about the international extension of the patent protection is a complex subject, which needs to be discussed with a patent attorney. Often the patent owner decides to extend the patent protection at least to the countries of production and important sales markets.The decision, in which countries an invention shall be patented, depends on a multiplicity of specific factors. There is no generally accepted proceeding. The most important criteria during an application which can be considered, could be found under the section “patent application strategy”.