A
                                                
                                                    The PCT is an international treaty, administered by the World Intellectual Property Organization (WIPO), between 
                more than 125 Paris Convention countries. The PCT makes it possible to seek patent protection for an invention 
                simultaneously in each of a large number of countries by filing a single “international” patent application 
                instead of filing several separate national or regional patent applications. The granting of patents remains 
                under the control of the national or regional patent Offices in what is called the “national phase”.
                        
                                                    Briefly, an outline of the PCT procedure includes the following steps:
                        
                                                    
                                                    Filing:
                                                    You file an international application, complying with the PCT formality requirements, in one language, 
             and you pay one set of fees.
                        
                                                    
                                                    International Search: 
                                                    
                                                    an “International Searching Authority (ISA)” (one of the world’s major patent Offices) identifies the 
        published documents which may have an influence on whether your invention is patentable and establishes 
        an opinion on your invention’s potential patentability.
                        
                                                    
                                                    International Publication: 
                                                    
                                                    as soon as possible after the expiration of 18 months from the earliest filing 
        date, the content of your international application is disclosed to the world.
                        
                                                    
                                                    International Preliminary Examination:
                                                    an “International Preliminary Examining Authority (IPEA)” (one of the world’s major patent 
        Offices), at your request, carries out an additional patentability analysis, usually on an 
        amended version of your application.
                        
                                                    
                                                    National Phase: 
                                                    
                                                    After the end of the PCT procedure, you start to pursue the grant of your patents directly 
        before the national (or regional) patent Offices of the countries in which you want to obtain them.