Huge spreadsheet of US Patent Transactions from 1927 to 2022. Includes dates for various patent transactions, event codes, and application numbers.
application_number, event_code, recorded_date, recorded_date - Year, recorded_date - Month, recorded_date - Day, recorded_date - Day Of Week, recorded_date - Hour, recorded_date - Minute, recorded_date - Seconds, recorded_date - Timezone