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3. PATENTS | 12 Months Ended
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Mar. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract] |
PATENTS | Patents consist of the following:
|  | March 31, 2016 |  |  | March 31, 2015 |
Patents |  | $ | 211,645 |  |  | $ | 211,645 |
Accumulated amortization |  |  | (117,484 | ) |  |  | (108,320 | )
|  | $ | 94,161 |  |  | $ | 103,325 |
Amortization expense for patents for the years ended March 31, 2016 and 2015 approximated $9,000. Future amortization expense on patents is estimated to be approximately $9,000 per year based on the estimated life of the patents. The weighted average remaining life of our patents is approximately 4.8 years.

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- Definition The entire disclosure for all or part of the information related to intangible assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16373-109275 + Details
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