Inventor · disambiguated record
John D. Macewan, Jr.
Also filed as: MACEWAN JOHN D JR
1 granted patent·58 citations·filing 1978–1978
50Inventor score
Technology areasE02F
Files withESCO CORP1
Top patents by PatentIndex Score
1 recordJoin the waitlist — get patent alerts
Get an alert when John D. Macewan, Jr. files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →