A lit of all Tesla Patents: https://www.tesla.com/legal/additional-resources#patent-list
(That's just the patent numbers and titles; you can get the patent docs from the USPTO etc.)
Tesla doesn't defend its patents. Anyone can use their technology. More on why:
https://www.tesla.com/en_CA/blog/all-our-patent-are-belong-y...
https://www.tesla.com/legal/additional-resources#patent-pled...