They can make their own charger since he opened the patents: all they have to do is agree to let Tesla have license to all of their own patents and they also ag

They can make their own charger since he opened the patents: all they have to do is agree to let Tesla have license to all of their own patents and they also agree to not copy any of Tesla's designs that aren't even covered by patent or copyright or provide "material assistance" to anyone who does. Essentially they can use the patents if they accept something stronger than patents: no copying Tesla's unpatented designs or they can go back and get you for the patent violation in perpetuity (or statute of limitations).