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, 2019
Mar. 31, 2018
Cash flows from operating activities:    
Loss from continuing operations $ (693,724) $ (975,328)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 27,595 43,704
Write-off of capitalized patents 0 10,873
Stock-based compensation 26,621 143,356
Decrease in operating assets:    
Prepayments and other current assets 1,044 32,645
Increase (decrease) in operating liabilities:    
Accounts payable 36,253 (55,362)
Accrued expenses 15,182 (85,084)
Net cash used in operating activities (587,029) (885,196)
Net cash used on operating activities – discontinued operations (409,867) (942,176)
Cash flows from investing activities:    
Purchase of property and equipment (1,194) 0
Acquisition of intangible assets (31,323) (33,561)
Net cash used in investing activities (32,517) (33,561)
Net cash used in investing activities – discontinued operations 0 (8,046)
Net decrease in cash and cash equivalents – continuing operations (619,546) (918,757)
Net decrease in cash and cash equivalents – discontinued operations (409,867) (950,222)
Cash and cash equivalents at beginning of period 3,258,077 10,022,247
Cash and cash equivalents at end of period $ 2,228,664 $ 8,153,268