Inventor · disambiguated record
Eric J. Butterfield
Also filed as: BUTTERFIELD ERIC J · BUTTERFIELD ERIC JOHN
10 granted patents·2,312 citations·filing 1985–2001
93Inventor score
Top patents by PatentIndex Score
10 records- 0198US5452836ASurgical stapling instrument with improved jaw closure and staple firing actuator mechanismETHICON ENDO SURGERY INC·Filed 1994·Granted Sep 26, 1995·2k cites·16 claims
- 0285US4896705AContainment manholeEMCO WHEATON·Filed 1989·Granted Jan 30, 1990·69 cites·12 claims
- 0384US4770317AAutomatic overfill prevention systemEMCO WHEATON·Filed 1987·Granted Sep 13, 1988·68 cites·9 claims
- 0476US4763806AContainment manholeEMCO WHEATON·Filed 1987·Granted Aug 16, 1988·50 cites·16 claims
- 0575US6505861B2Rotatable swivel elbowSYLTONE IND LLC·Filed 2001·Granted Jan 14, 2003·22 cites·8 claims
- 0668USD293462SFuel dispensing nozzleEMCO WHEATON·Filed 1985·Granted Dec 29, 1987·12 cites·1 claims
- 0761US4697624AVapor recovery nozzleEMCO WHEATON·Filed 1986·Granted Oct 6, 1987·32 cites·17 claims
- 0853US5549132AConvertible fuel dispensing nozzleEMCO WHEATON·Filed 1995·Granted Aug 27, 1996·19 cites·7 claims
- 0953US5027870AOverfill prevention mechanism for storage tanksEMCO WHEATON·Filed 1990·Granted Jul 2, 1991·24 cites·16 claims
- 1046US5222832ASpill containment devices and their installationDOVER CORP·Filed 1991·Granted Jun 29, 1993·18 cites·65 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →