Annual report pursuant to Section 13 and 15(d)


12 Months Ended
Dec. 31, 2015
Patents [Text Block]

Note 5. Patents

Patents represent legal fees and filing costs that are capitalized and amortized over their estimated useful lives of 17 to 20 years or their remaining legal lives, whichever is shorter, after they are placed in service. In both 2015 and 2014, we capitalized approximately $0.1 million for patent filing costs, for a total investment in patents of approximately $1.0 million and $0.8 million as of December 31, 2015 and 2014, respectively.

No amortization expense of patents was recorded in either of the years ended December 31, 2015 and 2014. These patents were not placed in service for the years ended December 31, 2015 and 2014, or in prior years.