Quarterly report pursuant to Section 13 or 15(d)

Statements of Cash Flows

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Statements of Cash Flows - USD ($)
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Cash flows from operating activities:    
Loss from continuing operations $ (1,603,330) $ (2,065,244)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 56,497 82,091
Write-off of capitalized patents 0 10,873
Stock-based compensation 140,190 510,160
Decrease in operating assets:    
Prepayments and other current assets 112,347 (243,632)
Increase (decrease) in operating liabilities:    
Accounts payable 2,836 (158,215)
Accrued expenses (7,588) (5,980)
Net cash used in operating activities (1,299,048) (1,869,947)
Net cash used in operating activities - discontinued operations (465,328) (1,072,185)
Cash flows from investing activities:    
Purchase of property and equipment (1,194) 0
Acquisition of intangible assets (54,710) (63,584)
Net cash used in investing activities (55,904) (63,584)
Net cash used in investing activities - discontinued operations 0 (34,130)
Cash flows from financing activities:    
Payment of taxes related to restricted stock vesting 0 (2,188)
Net cash used in financing activities 0 (2,188)
Net decrease in cash and cash equivalents - continuing operations (1,354,952) (1,935,719)
Net decrease in cash and cash equivalents - discontinued operations (465,328) (1,106,315)
Cash and cash equivalents at beginning of period 3,258,077 10,022,247
Cash and cash equivalents at end of period $ 1,437,797 $ 6,980,213