Inventor · disambiguated record
Frederick C. Hahn
Also filed as: HAHN FREDERICK C
15 granted patents·976 citations·filing 1976–1993
96Inventor score
Top patents by PatentIndex Score
15 records- 0197USD352044SBucket toothBUCYRUS BLADES INC·Filed 1993·Granted Nov 1, 1994·90 cites·1 claims
- 0297US4577423AExcavating tooth systemESCO CORP·Filed 1984·Granted Mar 25, 1986·82 cites·12 claims
- 0397US4470210AMounting for excavating implement and methodESCO CORP·Filed 1983·Granted Sep 11, 1984·81 cites·18 claims
- 0496US4335532AExcavating toothESCO CORP·Filed 1981·Granted Jun 22, 1982·138 cites·35 claims
- 0595US4727663AExcavating tooth having a lock including a basket springESCO CORP·Filed 1985·Granted Mar 1, 1988·78 cites·5 claims
- 0695US4501079ATwo piece cutting edge constructionESCO CORP·Filed 1983·Granted Feb 26, 1985·81 cites·13 claims
- 0792US4428131AExcavating toothESCO CORP·Filed 1982·Granted Jan 31, 1984·49 cites·8 claims
- 0892US4267653ALocking device for excavating equipmentESCO CORP·Filed 1980·Granted May 19, 1981·51 cites·9 claims
- 0991US5152088AExcavating tooth point and method of replacementESCO CORP·Filed 1991·Granted Oct 6, 1992·66 cites·18 claims
- 1091US4663867ALocking device for whisler type adapterESCO CORP·Filed 1985·Granted May 12, 1987·52 cites·2 claims
- 1189US5074062AMethod of replacing a worn excavating tooth pointESCO CORP·Filed 1990·Granted Dec 24, 1991·87 cites·6 claims
- 1288US4716668AExcavating tooth point for use with basket spring retainerESCO CORP·Filed 1987·Granted Jan 5, 1988·48 cites·7 claims
- 1383US5188680AMethod of making tooth pointESCO CORP·Filed 1990·Granted Feb 23, 1993·35 cites·30 claims
- 1482US4585117AFlight for link chain conveyorESCO CORP·Filed 1984·Granted Apr 29, 1986·29 cites·2 claims
- 1550US4061432AReleasable lock for excavating toothESCO CORP·Filed 1976·Granted Dec 6, 1977·9 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →