Intangible assets |
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Dec. 31, 2015 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intangible Assets, Net (Excluding Goodwill) [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Intangible assets |
Intangible assets other than goodwill
The Company capitalized $39,272 and $68,638 of product certification costs during the years ended December 31, 2015 and 2014, respectively. Also included in intangible assets are the costs incurred by the Company to acquire certain patents. These patents, once in service, will be amortized on a straight-line basis over the estimated economic life of the associated product, which range from approximately 7-10 years. The Company capitalized $88,985 and $73,321 of patent-related costs during the years ended December 31, 2015 and 2014, respectively. The Company capitalized $4,775 in trademarks during 2015.
Intangible assets at December 31, 2015 and 2014 consist of the following:
Amortization expense was $99,721 and $83,986 during the years ended December 31, 2015 and 2014, respectively. Estimated amortization expense at December 31, 2015 for each of the five succeeding years and thereafter are as follows:
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