XML 22 R9.htm IDEA: XBRL DOCUMENT
v3.21.2

3. PATENTS, NET | 12 Months Ended
--- | ---
Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract] |
PATENTS, NET | 3. PATENTS, NET Patents, net consist of the following:
|  | March 31, 2021 |  |  | March 31, 2020 |
Issued patents |  | $ | 157,442 |  |  | $ | 157,442 |
Accumulated amortization |  |  | (154,691 | ) |  |  | (154,141 | )
Issued patents, net of accumulated amortization |  |  | 2,751 |  |  |  | 3,301 |
Patents pending |  |  | 54,203 |  |  |  | 54,203 |
Patents, net |  | $ | 56,954 |  |  | $ | 57,504 |
Amortization expense for our capitalized issued patents for each of the fiscal years ended March 31, 2021 and 2020 was $550 and $9,164, respectively. As several patents expired during the fiscal year ended March 31, 2020 and only one capitalized patent remains to be amortized, future amortization expense on patents is estimated to be approximately $550 per year based on the estimated life of the patent. The weighted average remaining life of our remaining capitalized patent is approximately 5 years.

X
- References No definition available. + Details
Name: | us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_IntangibleAssetsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration