The Raiders have signed 30-year old TE John Owens and 29-year old CB Joey Thomas.  Owens played in all 16 games for the Seahawks last season and he caught 3 passes for 16 yards (5.3 avg).  He has played in 67 games in his NFL career in which he has caught 22 passes for 178 yards (8.1 avg) with 1 TD grab.  Owens is a good run blocker so he should help the Raiders in 2010.  Thomas did not play in the NFL last season.  He last appeared in the NFL in 2008 with the Dolphins.  Thomas has played in 31 games in his NFL career in which he has made 38 tackles, he defensed 4 passes and he forced 1 fumble.  Thomas will probably have to make the Raiders based on his special teams play.