Annual report pursuant to Section 13 and 15(d)

Statements of Cash Flows

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Statements of Cash Flows - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Cash flows from operating activities:    
Loss from continuing operations $ (3,119,530) $ (4,271,603)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 110,463 137,509
Write-off of capitalized patents 14,707 56,504
Stock-based compensation 184,339 730,802
Decrease (increase) in operating assets:    
Prepaid expenses and other assets 85,729 (58,349)
Increase (decrease) in operating liabilities:    
Accounts payable 88,753 (118,621)
Accrued expenses 104,956 (308,501)
Net cash used in operating activities (2,530,583) (3,832,259)
Net cash used in operating activities - discontinued operations (688,074) (2,713,957)
Cash flows from investing activities:    
Purchase of property and equipment (4,253) (1,088)
Acquisition of intangible assets (99,845) (133,061)
Net cash used in investing activities (104,098) (134,149)
Net cash provided by (used in) investing activities - discontinued operations 23,587 (78,084)
Cash flows from financing activities:    
Net proceeds from issuance of common stock and pre-funded warrants 3,098,773 0
Payment of taxes related to restricted stock vesting 0 (5,721)
Net cash provided by (used in) financing activities 3,098,773 (5,721)
Net increase (decrease) in cash and cash equivalents - continuing operations 464,092 (3,972,129)
Net decrease in cash and cash equivalents - discontinued operations (664,487) (2,792,041)
Cash and cash equivalents at beginning of year 3,258,077 10,022,247
Cash and cash equivalents at end of year $ 3,057,682 $ 3,258,077