Hey, I've been going onto a deep dive on the patents owned by this company and noticed that Apple inc. has been citing many of their patents such as this one with over 20 apple citations with the last being in april 2024 ( https://patents.google.com/patent/US9880352B2/en?assignee=Poet+technologies&oq=Poet+technologies+). How relevant are patent citations? All these citations make me think Apple has recognized the value of this tech and is exploring its applications.