Annual report pursuant to Section 13 and 15(d)

10. Income Taxes (Details - Deferred Tax Assets)

v3.20.4
10. Income Taxes (Details - Deferred Tax Assets) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Deferred tax assets:    
U.S. federal net operating loss carryforwards $ 4,671,789 $ 3,857,973
IPR&D 7,020,109 6,454,240
Share-based payments 1,961,112 2,065,735
Enhanced research and development tax credits 1,375,136 1,219,815
U.S. state net operating loss carryforwards 1,408,866 1,160,983
Transaction costs 122,892 142,013
Accrued expenses 91,118 72,503
Depreciation 0 5,070
Lease liability 17,082 5,475
Total deferred tax assets before valuation allowance 29,661,323 25,878,322
Valuation allowance for deferred tax assets (29,644,241) (25,872,847)
Net deferred tax assets 17,082 5,475
Deferred tax liability:    
Indefinite-lived intangible asset 0 (2,918,518)
Right of use asset - leases (17,082) (5,475)
Total deferred tax liabilities (17,082) (2,923,993)
Net deferred tax assets and liabilities 0 (2,918,518)
UNITED KINGDOM [Member]    
Deferred tax assets:    
Foreign net operating loss carryforwards 10,733,568 8,984,851
Foreign capital loss carryforwards 1,550,659 1,340,302
SWITZERLAND [Member]    
Deferred tax assets:    
Foreign net operating loss carryforwards 72,614 23,510
GERMANY [Member]    
Deferred tax assets:    
Foreign net operating loss carryforwards $ 636,378 $ 545,852