39 - the Patriots have won 22 times.
The Chargers have 14 wins over the Patriots in the regular season - most recently in 2008 - and one playoff win - the 1963 AFL Championship Game.
Through the 2012 season, the San Diego Chargers made the playoffs 17 times.
The San Diego Chargers have never won a Super Bowl
As of 2008 the Chargers have won the Raiders 10 times in a row.
The Chargers have been in the playoffs 15 times with a post season record of 9-15.
The San Diego Chargers have gone to the Super Bowl 10 times, Tied with the Green Bay Packers
The Raiders have won 55 of 101 career matchups with the Chargers.
Once in 1994
Twice - 2006 and 2007.