Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Cash Flows

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Consolidated Statements of Cash Flows - USD ($)
 12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Reconciliation of net loss to net cash used in operating activities:    
Net loss $ (10,092,363) $ (11,818,652)
Stock option compensation to employees and directors 3,922,719 3,560,883
Stock options and warrants issued to consultants 214,741 198,421
Restricted stock award compensation to employee pursuant to stock incentive plan 1,954,441
Amortization of patents 418,750
Depreciation of property and equipment 38,276 47,558
Loss on disposal of property and equipment 148,084
Amortization of operating lease right-of-use asset 51,881
Impairment in carrying amount of patent assets 418,750
Change in operating assets and liabilities:    
Receivables 64,296 271,700
Prepaid expenses and other current assets (124,360) (9,481)
Accounts payable (353,449) 3,805
Accrued expenses 5,527 212,399
Operating lease liability (51,023)
Net cash used in operating activities (6,175,671) (4,741,426)
Cash flows from investing activities:    
Disbursements to acquire short-term investments in certificates of deposit (5,010,000) (3,850,000)
Proceeds from maturities of short-term investments in certificates of deposit 4,720,000 3,500,000
Purchase of property and equipment (15,791) (175,457)
Net cash used in investing activities (305,791) (525,457)
Cash flows from financing activities:    
Proceeds from sale of common stock in at-the-market offering 9,266,177 5,527,428
Proceeds from sale of common stock pursuant to employee stock purchase plan 18,451 39,086
Proceeds from settlement of shareholder derivative complaint 14,034
Proceeds from exercise of stock options and warrants 122,270 122,070
Net cash provided by financing activities 9,406,898 5,702,618
Net increase in cash and cash equivalents 2,925,436 435,735
Cash and cash equivalents at beginning of year 3,491,625 3,055,890
Cash and cash equivalents at end of year 6,417,061 3,491,625
Supplemental cash flow information:    
Cash proceeds from interest income 39,890 55,729
Supplemental disclosure of non-cash investing activity:    
Disposal of fully depreciated property and equipment (6,343)
Supplemental disclosure of non-cash financing activity:    
Note receivable issued for settlement of shareholder derivative complaint $ 31,236