Did you know that Minnesota Mining and Manufacturing Company owned the (now-expired) patent “Process for Preparing Adrenochrome”. Process for Preparing Adrenochrome Patent number: 4,501,923 Inventor: Deryck F. Boot, Knighton England Assignee: Minnesota Mining & Manufacturing Company (now 3M) Date: February 26, 1985 https://t.center/RiteWabbit