Inventor · disambiguated record
Daniel Frederick Fehler
Also filed as: FEHLER DANIEL F · FEHLER DANIEL FREDERICK
2 granted patents·82 citations·filing 1985–2004
65Inventor score
Technology areasE21B
Top patents by PatentIndex Score
2 records- 0182US4614235AUse of mono and polyalkylene glycol ethers as agents for the release of differentially stuck drill pipeEXXON CHEMICAL PATENTS INC·Filed 1985·Granted Sep 30, 1986·72 cites·7 claims
- 0239US7451818B2Method of reducing sand production from a wellboreSHELL OIL CO·Filed 2004·Granted Nov 18, 2008·10 cites·14 claims
Join the waitlist — get patent alerts
Get an alert when Daniel Frederick Fehler 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 →