Develop and sell MKR compatible shields

Hello guys,

Spent some time and was not able to get clear answer...

May we (as US based LLC) develop and sell (through many sales channel) Arduino and MKR compatible HW (shields, not controller boards)?

If, so, should we have some legal agreement / licensing / royalties?

Thanks,
Max

(deleted)

Hello guys,

Thank you for reply.

So, can we publish in our products description as "Arduino MKR compatible"?

Correct?

Thanks,
Max.