Patents

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Patents

6. Patents

	June 30, 2018 Cost		Accumulated Amortization		June 30, 2018 Net
Patents	$	201,318	$	130,085	$	71,233

	December 31, 2017 Cost		Accumulated Amortization		December 31, 2017 Net
Patents	$	212,426	$	132,974	$	79,452

Decrease in 2018 cost was due to currency conversion. June 30, 2018 cost in Canadian dollars - $265,102 (December 31, 2017 - $265,102 in Canadian dollars).

Amount of amortization for the six months ended June 30, 2018 - $8,219 (2017 - $8,219) and is included in cost of sales in the consolidated statements of operations and comprehensive income (loss).

Estimated amortization expense over the next five years is as follows:

2018	$	16,438
2019		16,438
2020		16,438
2021		16,438
2022		16,438