can you please help

During 2021, Riverbed Corporation spent $162,720 in research and development costs. As a result, a new product called the New Age Piano was patented. The patent was obtained on October 1,2021 , and had a legal life of 20 years and a useful life of 10 years. Legal costs of $36,720 related to the patent were incurred as of October 1,2021. (a) Prepare all journal entries required in 2021 and 2022 as a result of the transactions above. (Credit account titles are outomatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts. List all debit entries before credit entries. Record entries in the order displayed in the problem statement.) (To record research and development expenses) 2021 Patents 36720 Cash (To record legal expenses) Amortization Expense 918 Patents (To record amortization expense) Amortization Expense 3672 Patents 3672 On June 1,2023 , Riverbed spent $8,280 to successfully prosecute a patent infringement suit. As a result, the estimate of useful life was extended to 12 years from June 1, 2023. Prepare all journal entries required in 2023 and 2024. (Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the occount titles and enter 0 for the amounts. List all debit entries before credit entries. Record entries in the order displayed in the problem statement.)