Except, that Tesla is making the "ink" quite cheap! (Because they know that making it cheap and convenient is the best way to dominate the market.)
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).
what we got is a truck that no one knows its weights so you can't tell how much it can move in cargo, that costs two times more to operate with a very limited range unless you want to destroy your batteries really quickly but hey they did engineer the best phone charger for it....
I got that "electricity is 0.50" is a claim not backed up by reality.