It's possible that:
* The name is misspelled: Double check the spelling to see if there are any variations.
* He's a lesser-known figure: There might be a Patrick Byas with smaller roles in film or television that haven't gained widespread recognition.
* He works in a different field: He might be involved in the film industry but in a different role like editing, production, or writing.
To help me find more information, please provide:
* Any other details about Patrick Byas: Like his age, hometown, or if he has a specific genre he works in.
* Any other projects he's involved with: For example, if he's worked on any independent films or local productions.
With more information, I might be able to find his filmography.