Inventor · disambiguated record
Edward W. Heffern
Also filed as: HEFFERN EDWARD W · SABOL ALBERT R
3 granted patents·44 citations·filing 1974–1986
70Inventor score
Top patents by PatentIndex Score
3 records- 0174US4690217AProcess for water injectivity improvement treatment of water injection wellsAMOCO CORP·Filed 1986·Granted Sep 1, 1987·30 cites·11 claims
- 0257US3954849APreparation of alkenyl sulfonatesSTANDARD OIL CO·Filed 1974·Granted May 4, 1976·9 cites·4 claims
- 0339US4201682AMethod of preparing overbased magnesium sulfonatesSTANDARD OIL CO INDIANA·Filed 1975·Granted May 6, 1980·5 cites·8 claims
Join the waitlist — get patent alerts
Get an alert when Edward W. Heffern 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 →