Joao Bock Transaction Systems [NPE] filed suit against Comerica Bank over four patents related to providing financial transaction authorization. The complaint is currently unavailable.  Raymond Joao and Robert Bock are the named inventors on Joao Bock Transaction System’s patents.  Joao and Bock, and their related entities have filed 14 prior suits against over 70 defendants.  11/14, Central District of California, 2:2011cv09455.