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Patents and Other Intangible Assets | 12 Months Ended
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Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Intangible Assets Disclosure [Text Block] | Note 4 – Patents and Other Intangible Assets Patents and other intangible assets are summarized as follows:
|  | December 31, |
|  | 2018 |  |  | 2017 |
Patents |  |  |  |  |  |  |  |
Patents pending |  | $ | 1,202,000 |  |  | $ | 1,167,000 |
Issued patents |  |  | 761,000 |  |  |  | 930,000 |
|  |  | 1,963,000 |  |  |  | 2,097,000 |
Trademarks |  |  |  |  |  |  |  |
Trademarks pending |  |  | 55,000 |  |  |  | 41,000 |
Registered trademarks |  |  | 23,000 |  |  |  | 23,000 |
|  |  | 78,000 |  |  |  | 64,000 |
Other |  |  | 8,000 |  |  |  | 8,000 |
|  |  | 2,049,000 |  |  |  | 2,169,000 |
Accumulated amortization |  |  | (290,000 | ) |  |  | (313,000 | )
|  | $ | 1,759,000 |  |  | $ | 1,856,000 |
Future amortization expense associated with awarded patents and registered trademarks as of December 31, 2018 is estimated as follows:
2019 |  | $ | 169,000 |
2020 |  |  | 142,000 |
2021 |  |  | 88,000 |
2022 |  |  | 62,000 |
2023 |  |  | 32,000 |
Thereafter |  |  | 7,000 |
|  | $ | 500,000 |
In 2018, the Company reassessed its patent portfolio in order to ensure that both the cost-effectiveness and the value created through the intellectual property portfolio were maximized and to focus resources on its most promising patents. Those patents considered to be the most beneficial were retained and those pending patents projected to be unnecessarily costly that could be disposed of without meaningfully degrading the quality of the remaining intellectual property portfolio were abandoned. As a result, during the year ended December 31, 2018, the Company recorded impairment loss of $322,000 of capitalized patents costs. There was no such impairment loss recognized during the year ended December 31, 2017.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI http://asc.fasb.org/topic&trid=2144416 + Details
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