Quarterly report pursuant to Section 13 or 15(d)

Statements of Cash Flows

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Statements of Cash Flows - USD ($)
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Cash flows from operating activities:    
Loss from continuing operations $ (930,501) $ (693,724)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 28,113 27,595
Write-off of capitalized patents 17,344 0
Stock-based compensation 116,497 26,621
Decrease in operating assets:    
Prepayments and other current assets (5,754) 1,044
Increase (decrease) in operating liabilities:    
Accounts payable (44,036) 36,253
Accrued expenses 4,710 15,182
Net cash used in operating activities (813,627) (587,029)
Net cash used in operating activities - discontinued operations 0 (409,867)
Cash flows from investing activities:    
Purchase of property and equipment (10,678) (1,194)
Acquisition of intangible assets (13,385) (31,323)
Net cash used in investing activities (24,063) (32,517)
Net decrease in cash and cash equivalents - continuing operations (837,690) (619,546)
Net decrease in cash and cash equivalents - discontinued operations 0 (409,867)
Cash and cash equivalents at beginning of period 3,057,682 3,258,077
Cash and cash equivalents at end of period $ 2,219,992 $ 2,228,664