There are a number of saints named Catherine so you need to be more specific.
Catherine of Aragon is not a saint.
I have posted a link below where you can read the complete life of Catherine and see why the Church decided to confer on her the title of Saint.
Saint Catherine of Bologna is listed as the only patron saint of art.
Catherine of Aragon is not a canonized saint.
Saint Catherine of Alexandria is the unofficial patron saint. However, Saint Barbara is the official patron saint of fireworks and fireworks manufacturers.
Saint Catherine of Sieanna Represents the dove and the lily:)
Catherine MacCauley is not yet canonized saint.
There are many saints named Catherine. You need to be specific.
No there isn't. There is a Saint Catherine though. My sister made the mistake when she made her confirmation under the name Kathleen only to discover there was no such saint. This is true but I'm making my confirmation and I'm picking Kathleen as that is another form of Catherine
Saint Catherine or Katherine
She is not known as a saint.
There is a Saint Catherine of Siena.