First, you have to die. Once you have been dead at least 5 years a cause for sainthood can be opened. The local bishop or other religious leader will assign someone to collect all sorts of documents and conduct interviews about the life of the candidate. Once they have all the information, the file will be sent to the Sacred Congregation for the causes of Saints in Rome. They will study the file and, if it seems the person exhibited some form of heroic virtue, that person will be declared a Servant of God and an official Cause for Sainthood will be opened. More investigations and interviews will be conducted and if the person passes all favorably, they will be named as Venerable. Next, more investigations and at least one miracle must be confirmed and verified due to the intercession of the candidate. If all goes well, the candidate will then be Beatified by the Pope and receive the title of Blessed. Mother Teresa of Calcutta is at this stage right now. In the final stage, more investigations and at least one more miracle must be verified. Once all that has been done, the file is turned over to the pope who will make the final decision. It will be up to the pope to declare a person a saint and then arrangements are made for the official canonization ceremonies. This process can take many years, even centuries. Of course, the person became a saint the moment they entered heaven. The Church just needs to investigate to make sure the candidate is worthy of emulation and makes a good role model for future generations.
Saint Thomas; Saint Lucia; Saint Helena; Saint John; Saint Croix; Saint Martin; Saint Pierre; Saint Vincent; Saint Paul; Saint Barthelemy; Saint Kitts
Saint Noel Chabanel is a saint but not a patron saint.
Saint Aleth of Dijon (Alice) is a saint but not a patron saint.
*Saint Anne; Saint Anthony of Padua; Saint Dominic of Silos; Saint Elizabeth; Saint Gerard Majella; Saint Joseph
Babylas is a saint but not a patron saint.
Mellon is a saint but not a patron saint.
Saint Cocca is not a patron saint.
Kiara is a saint but not a patron saint at this time.
Yes, Saint Peter is really a saint. If he were not a saint he would not have that title.
Yes, Saint Damian, the brother of Saint Cosmas, is a Catholic saint.
Saint Lillian is not a patron saint as per the Patron Saint Index.
sainez,saint arnaud,saint Charles, and saint Claire