Answer:
1. Purchase of a patent - Investing activities
2. Depreciation expense - Operating activities
3. Decrease in accounts receivable - Operating activities
4. Issuance of a note payable - Financing activities
5. Increase in inventory - Operating activities
6. Collection of notes receivable - Investing activities
7. Purchase of equipment - Investing activities
8. Exchange of long-term assets - Non-cash activities
9. Decrease in accounts payable - Operating activities
10. Payment of dividends - Financing activities