Inventor · disambiguated record
David W. Griffiths
Also filed as: GRIFFITHS DAVID W
4 granted patents·66 citations·filing 1974–1980
76Inventor score
Files withPETROLITE CORP4
Top patents by PatentIndex Score
4 records- 0184US4224150AProcess for clarifying aqueous systems employing quaternary ammonium adducts of polymerizable tertiary ammonium salts and acrylamidePETROLITE CORP·Filed 1978·Granted Sep 23, 1980·43 cites·6 claims
- 0273US4179549AQuaternary ammonium adducts of polymerizable tertiary ammonium salts and acrylamidePETROLITE CORP·Filed 1974·Granted Dec 18, 1979·14 cites·6 claims
- 0346US4310472AQuaternary ammonium adducts of polymerizable tertiary ammonium salts and acrylonitrilePETROLITE CORP·Filed 1980·Granted Jan 12, 1982·6 cites·5 claims
- 0432US4230839AQuaternary ammonium adducts of polymerizable tertiary ammonium salts and acrylonitrilePETROLITE CORP·Filed 1978·Granted Oct 28, 1980·3 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when David W. Griffiths 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 →