Inventor · disambiguated record
Howard E. Mitchell
Also filed as: MITCHELL HOWARD E · MITCHELL HOWARD EARL
9 granted patents·186 citations·filing 1976–1996
88Inventor score
Top patents by PatentIndex Score
9 records- 0185US5602457APhotovoltaic solar cell laminated in vehicle windshieldEXIDE CORP·Filed 1996·Granted Feb 11, 1997·115 cites·15 claims
- 0252US4177866ASystem for boring raises having portions of different diametersDRESSER IND·Filed 1978·Granted Dec 11, 1979·17 cites·7 claims
- 0345US4179000ASelf-cleaning raise boring head systemDRESSER IND·Filed 1978·Granted Dec 18, 1979·13 cites·2 claims
- 0445US3993147ATaper lock removable stem for raise bitDRESSER IND·Filed 1976·Granted Nov 23, 1976·13 cites·3 claims
- 0539US4161225ASkewed inserts for an earth boring cutterDRESSER IND·Filed 1978·Granted Jul 17, 1979·9 cites·2 claims
- 0638US5558960ASeasonal use lead acid electrical storage batteryEXIDE CORP·Filed 1995·Granted Sep 24, 1996·10 cites·1 claims
- 0737US4194578ARaise boring head with retractable gage cuttersDRESSER IND·Filed 1978·Granted Mar 25, 1980·8 cites·6 claims
- 0828US4186809ASteep angle raise bitDRESSER IND·Filed 1978·Granted Feb 5, 1980·0 cites·2 claims
- 0928US4046206ALocking apparatus for earth boring cutter or stabilizerDRESSER IND·Filed 1976·Granted Sep 6, 1977·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →