other income was primarily the result of an increase of $644,580 in investment income resulting from the recent rise in interest rates and a higher average invested cash balance period over period; and a decrease of $39,307 in income and other taxes, partially offset by an increase of $89,017 in foreign exchange losses.
Provision for Income Taxes. There was not a provision for income taxes in the respective nine month periods ending September 30, 2022 and 2021.
Liquidity and Capital Resources
Capital Resources: As of September 30, 2022, we had cash and cash equivalents of $90,374,403, a decrease of $29,829,470 from $120,203,873 as of December 31, 2021.
As of September 30, 2022, we had current assets of $109,010,999 as compared to current liabilities of $8,217,818 which resulted in a positive working capital position of $100,793,181. As of December 31, 2021, we had a working capital position of $132,993,899. Our current liabilities are comprised principally of accounts payable, accrued expenses, licensing fee commitments, and operating lease right-of-use liabilities.
Summary of Cash Flow:
The following table summarizes our select cash flows for the nine months ended:
| | September 30, | | (as Restated) September 30, |
| | 2022 | | 2021 |
Net Cash Provided by (used in) | | | | | | |
Operating Activities | | | (17,935,375) | | | (18,909,428) |
Investing Activities | | | (11,691,543) | | | (4,340,443) |
Financing Activities | | | (202,552) | | | 115,927,024 |
During the nine months ended September 30, 2022, we used $17,935,375 of cash for operating activities as compared to $18,909,428 for the comparable period in 2021. Net changes in working capital items were $1,870,484 for the nine months ended September 30, 2022, with the largest factors resulting from a $1,268,857 increase in trade accounts receivables and other accrued receivables and a decrease of $417,298 in net trade payables and accrued expenses.
During the nine months ended September 30, 2022, we used $11,691,543 of cash for investing activities, which included $6,000,000 in payments made towards our $15,000,000 technology license fee commitment (as discussed in Note 6), $5,203,562 for purchases of manufacturing equipment, product mold tooling, and backplane chip design and tooling fees; $362,981 in patent and trademark expenditures; and a further investment of $125,000 in the purchase of software operating license upgrades for our smart glasses platform. For the nine months ended September 30, 2021, we used a total of $4,340,443 in cash for investing activities.
During the nine months ended September 30, 2022, we used $202,552 in net cash from financing activities, which included $251,057 for share repurchases under our Share Buyback Program that was announced on March 2, 2022, and partially offset by $48,505 in proceeds from the exercise of stock options. For the nine months ended September 30, 2021, we received $115,927,024 in proceeds from financing activities, primarily from sales of our equity securities.
As of September 30, 2022, the Company does not have any current or long-term debt obligations outstanding other than Licensing Fee Commitments totaling $9,000,000 related to the Atomistic Agreements described in Note 6 of the consolidated financial statements. The Company also has contractual investment commitments for a backplane chip design under the Atomistic Agreements, as further described in Note 5 of the unaudited consolidated financial statements, which total approximately $9,500,000 and are expected to be funded to Atomistic over the next 15 to 21 months