Patents and Trademarks, Net
|12 Months Ended|
Dec. 31, 2018
|Goodwill and Intangible Assets Disclosure [Abstract]|
|Patents and Trademarks, Net||
Note 6 — Patents and Trademarks, Net
Total amortization expense for patents and trademarks for the years ended December 31, 2018, 2017 and 2016 was $94,137, $77,415 and $106,734, respectively. The estimated aggregate annual amortization expense for each of the next five fiscal years is approximately $118,000. We recorded an impairment charge of $20,506 representing a cost of $44,371, less accumulated amortization of $23,865 for the year ended December 31, 2016. We recorded no patent impairment charges for the years ended December 31, 2018 and 2017.