Never saw one on a Patriot, but I bet one for an XJ would fit ok. There would be other things you'd need to do too, to go deeper in water.

 

They don't make one for the patriot. So you would have to do a custom fit one.

 

You have to do some real cutting to get a snorkel in the patriot also

 

Lot's of videos and "how to's" for making one yourself.

You would need to add to other breathers, etc, too, I think, to go deeper than 19 inches.

 

Cowl snorkel looks like the best option
http://www.jeeppatriot.com/forum/showthread.php?t=148506

 

This ^^