Inventor · disambiguated record
Martin R. Hannen
Also filed as: CHARLESWORTH DAVID V
1 granted patent·46 citations·filing 1978–1978
48Inventor score
Technology areasG09B
Files withCHARLESWORTH DAVID V1
Top patents by PatentIndex Score
1 recordJoin the waitlist — get patent alerts
Get an alert when Martin R. Hannen 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 →