As of last month, SAE is making NACS an open standard (properly open, not just in name). So if you want to make an NACS charger, you get permission from SAE, not Tesla.
I’m not a lawyer, and I don’t know for sure that there isn’t any patent-pledge sneakery involved here, but I would be a lot more comfortable using those designs myself if they were published by a standards body like ISO, IEC, or SAE.
As of last month, SAE is making NACS an open standard (properly open, not just in name). So if you want to make an NACS charger, you get permission from SAE, not Tesla.
https://www.sae.org/news/press-room/2023/06/sae-international-announces-standard-for-nacs-connector
I’m not a lawyer, and I don’t know for sure that there isn’t any patent-pledge sneakery involved here, but I would be a lot more comfortable using those designs myself if they were published by a standards body like ISO, IEC, or SAE.