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, 2018
Dec. 31, 2017
Cash flows from operating activities:    
Loss from continuing operations $ (4,271,603) $ (4,210,062)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 137,509 154,763
Write-off of fixed assets 0 4,501
Write-off of capitalized patents 56,504 87,655
Stock-based compensation 730,802 988,886
Decrease (increase) in operating assets:    
Accounts receivable 5,618 (5,618)
Prepaid expenses and other assets (63,967) (19,583)
Increase (decrease) in operating liabilities:    
Accounts payable (118,621) 57,100
Accrued expenses (308,501) (15,903)
Net cash used in operating activities (3,832,259) (2,958,261)
Net cash used in operating activities – discontinued operations (2,713,957) (4,457,278)
Cash flows from investing activities:    
Purchase of property and equipment (1,088) (64,747)
Acquisition of intangible assets (133,061) (171,330)
Net cash used in investing activities (134,149) (236,077)
Net cash used in investing activities – discontinued operations (78,084) (197,953)
Cash flows from financing activities:    
Net proceeds from issuance of common stock 0 13,657,331
Exercise of options and warrants 0 11,143
Payment of taxes related to restricted stock vesting (5,721) (1,574)
Net cash (used in) provided by financing activities (5,721) 13,666,900
Net increase (decrease) in cash and cash equivalents - continuing operations (3,972,129) 10,472,562
Net decrease in cash and cash equivalents – discontinued operations (2,792,041) (4,655,231)
Cash and cash equivalents at beginning of year 10,022,247 4,204,916
Cash and cash equivalents at end of year $ 3,258,077 $ 10,022,247