Inventor · disambiguated record
Hartley A. French
Also filed as: FRENCH HARTLEY A
2 granted patents·49 citations·filing 1980–1984
64Inventor score
Technology areasG01V
Files withFRENCH HARTLEY A2
Top patents by PatentIndex Score
2 records- 0162US4714888AApparatus for observing the passage of a pig in a pipelineFRENCH HARTLEY A·Filed 1984·Granted Dec 22, 1987·23 cites·18 claims
- 0262US4430613APipeline inspection and maintenance method including moving a magnetic field responsive device along the route of the pipelineFRENCH HARTLEY A·Filed 1980·Granted Feb 7, 1984·26 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Hartley A. French 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 →