Amazing! I didn't know this history at all. https://en.m.wikipedia.org/wiki/Patent_encumbrance_of_large_automotive_NiMH_batteries https://en.m.wikipedia.org/wi

Amazing! I didn't know this history at all. https://en.m.wikipedia.org/wiki/Patent_encumbrance_of_large_automotive_NiMH_batteries https://en.m.wikipedia.org/wiki/Patent_encumbrance_of_large_...