Interesting point: > At Tesla, however, we felt compelled to create patents out of concern that the big car companies would copy our technology and then use their massive manufacturing, sales and marketing power to overwhelm Tesla. We couldn’t have been more wrong. The unfortunate reality is the opposite: electric car programs (or programs for any vehicle that doesn’t burn hydrocarbons) at the major manufacturers are…
Those companies have an established market share which correspond to a massive number of non-electric car sales, it is not surprising in the least that the new developing area they are coming in (electric) is being very small right now. That's doesn't mean they aren't doing a lot of R&D or lack the ability to uses those patents.