Federal prosecutors in California pressed ahead with a novel attempt to dismantle an outlaw motorcycle club, arguing to jurors that the group should be stripped of trademarks it owns on its coveted insignia as punishment for operating a criminal organization.

Last month, at the end of a lengthy trial, a jury in Santa Ana convicted the Mongols motorcycle club of racketeering and conspiracy charges, finding the group shared responsibility for several violent acts and drug crimes committed by individual Mongol members.