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Pat. 10348221 United States, Int. Cl.22 H02J 7/00, E05F 15/611, H02J 7/34, H02M 3/158, H02P 3/14, H02P 7/29, H02P 7/292. Dynamic energy harvesting and variable harvesting force system : Appl. N 15/962357 : Filed 25.04.2018 : Pub. 09.07.2019 : / John A. Wolfe, Daniel Langenberg, Michael Stock ; Assignee Schlage Lock Co LLC ; NN p. : patents.google.com : URL: https://patents.google.com/patent/US10348221/en?oq=US10348221.html (дата обращения: ДД.ММ.ГГГГ).