Inventor · disambiguated record
John F. Underwood
Also filed as: UNDERWOOD JOHN A · UNDERWOOD JOHN F
2 granted patents·1 pending application·59 citations·filing 1976–2005
65Inventor score
Top patents by PatentIndex Score
3 records- 0168US4269103AElectromagnetic pickup for stringed musical instrumentsUNDERWOOD JOHN F·Filed 1977·Granted May 26, 1981·37 cites·28 claims
- 0267US4050341AElectromagnetic pickup for stringed musical instrumentsUNDERWOOD JOHN F·Filed 1976·Granted Sep 27, 1977·22 cites·21 claims
- 0340US2006238798A1Output locationsJUSTICE GREG K·Filed 2005·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when John F. Underwood 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 →