Advanced graphite additive for enhanced cycle-life of deep discharge lead-acid batteries Grant US-10340523-B2 United States of America 02 Jul 2019
Advanced graphite additive for enhanced cycle-life of lead-acid batteries Grant US-10224550-B2 United States of America 05 Mar 2019
Composition that enhances deep cycle performance of valve-regulated lead-acid batteries… Grant US-10014520-B2 United States of America 03 Jul 2018
Advanced graphite additive for enhanced cycle-life of lead-acid batteries Grant US-8765297-B2 United States of America 01 Jul 2014