Rear (A280H): U.S. Pat. Nos. 6,530,111; 6,675,434; 6,836,926; 6,973,698 Other patents pending. (A282H – A402H): 6,675,434; 6,836,926; 6,973,698 Other patents pending. Duralast Flex (DLF14 – DLF28): U.S. Pat. Nos. 6,292,974; 6,675,434; 6,836,926; 6,944...