Inventor · disambiguated record
Henry S. Duffee
Also filed as: DUFFEE HENRY S · DUFFEE HENRY S K
6 granted patents·183 citations·filing 1982–1996
86Inventor score
Technology areasF16J
Top patents by PatentIndex Score
6 records- 0180US5290047ABearing protection deviceFIVE STAR SEAL CORP·Filed 1992·Granted Mar 1, 1994·56 cites·8 claims
- 0274US4538820AShaft sealDUFFEE HENRY S·Filed 1983·Granted Sep 3, 1985·31 cites·3 claims
- 0371US5716054ADiametric plane split mechanical face sealBW IP INTERNATIONAL INC·Filed 1996·Granted Feb 10, 1998·38 cites·22 claims
- 0461US4443015ACartridge type rotary shaft seal with bearings and bellowsFIVE STAR SEAL CORP·Filed 1982·Granted Apr 17, 1984·23 cites·9 claims
- 0550US5294132ASemi-cartridge sealFIVE STAR SEAL CORP·Filed 1992·Granted Mar 15, 1994·21 cites·9 claims
- 0644US5035436AHousing seal chamber bodyFIVE STAR SEAL CORP·Filed 1990·Granted Jul 30, 1991·14 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →