Patton, just 19 and already a powerfully imposing key forward, has extended beyond the obligatory two-year deal the national draft nuber one pick from 2011 was on under AFL regulations.
Patton has committed to the Giants until the end of 2015.
Confirmation that one of the AFL's potentially biggest stars of the future would stay at the new outfit beyond this season was on the back of the Giants first ever win over arch local rival Sydney in an NAB Cup game last weekend.
The Giants launch their second AFL season against the reigning premiers at ANZ Stadium on Saturday March 30.
Other Giants young guns Dom Tyson, Will Hoskin-Elliott, Andrew Phillips and Sam Frost also all agreed to extensions until the end of 2015.
Curtly Hampton and Aidan Corr signed new commitments until the end of 2016.
A confident Patton echoed bold sentiment from champion AFL coach Kevin Sheedy that the signings confirmed powerful commitment to build the league's newest franchise into a power.
"It's a club that any other player to get the chance to play at would be pretty special," Patton said on behalf of all signings announced on Wednesday.
"We've got a lot of talent here and all the boys are really good blokes and the coach and support staff.
"I'm pretty sure none of us thought about leaving the club.
"It's a club you really don't want to leave and I think we can do something pretty special in coming years.
"iIt's a great club to be and we're pretty happy to be re-signed."
Patton staying at the Giants until he is likely to be approaching around 80-odd games follows confident retention of their young list over the past 12 months as the new franchise established stability in Sydney's western suburbs.
Potentially brilliant forward Jeremy Cameron, as well as trump on-ballers Stephen Coniglio, Toby Greene, Dylan Shiel, Devon Smith, Adam Treloar and Tomas Bugg who, along with Tyson, were NAB Rising Star nominations in 2012 and signed new Giants agreements beyond this season.
Big ruckman Jonathan Giles and tough defender Matt Buntine also signed contract extensions late last year.