What is Saint Philip the patron saint of?

Saint Philip is known to be the patron saint of hatters, pastry chefs, and bakers due to his interaction with Jesus during the feeding of the five thousand, as recounted in the Gospel of John 6:4-11.

Now the Passover, the feast of the Jews, was at hand. Lifting up his eyes, then, and seeing that a multitude was coming to him, Jesus said to Philip, “How are we to buy bread, so that these people may eat?” This he said to test him, for he himself knew what he would do. Philip answered him, “Two hundred denarii would not buy enough bread for each of them to get a little.” One of his disciples, Andrew, Simon Peter’s brother, said to him, “There is a lad here who has five barley loaves and two fish; but what are they among so many?” Jesus said, “Make the people sit down.” Now there was much grass in the place; so the men sat down, in number about five thousand. Jesus then took the loaves, and when he had given thanks, he distributed them to those who were seated; so also the fish, as much as they wanted.

Philip had not yet known what the Son of Man could do. After this miracle, Philip was able to witness the power of God.