September 30, 2020		Cost				Accumulated Amortization				Net
Patents-foundation intellectual property		$	1,377,863			$	(1,035,362	)		$	342,501
Total		$	1,377,863			$	(1,035,362	)		$	342,501

 

December 31, 2019		Cost				Accumulated Amortization				Net
Patents-foundation intellectual property		$	1,377,863			$	(995,603	)		$	382,260
Total		$	1,377,863			$	(995,603	)		$	382,260

 

Patents are amortized utilizing the straight-line method over estimated useful lives ranging from to years. Amortization expense was approximately  and for the and months ended respectively. Amortization expense was approximately  and for the and months ended respectively.