Inventor · disambiguated record
Henry W. Blackwell
Also filed as: BLACKWELL HENRY W · BLACKWELL HENRY WAYNE
11 granted patents·355 citations·filing 1975–1988
92Inventor score
Files withDRESSER IND11
Top patents by PatentIndex Score
11 records- 0192US4848459AApparatus for installing a liner within a well boreDRESSER IND·Filed 1988·Granted Jul 18, 1989·133 cites·3 claims
- 0276US4830103ASetting tool for mechanical packerDRESSER IND·Filed 1988·Granted May 16, 1989·54 cites·13 claims
- 0366US3967678AStuffing box control systemDRESSER IND·Filed 1975·Granted Jul 6, 1976·27 cites·15 claims
- 0464US4355443ABowl and slips assembly with improved slip insertsDRESSER IND·Filed 1980·Granted Oct 26, 1982·30 cites·11 claims
- 0557US4008759AOil well tool with packing meansDRESSER IND·Filed 1975·Granted Feb 22, 1977·19 cites·8 claims
- 0656US4449736AReleasable tubing string connectorDRESSER IND·Filed 1981·Granted May 22, 1984·23 cites·7 claims
- 0753US4317407ASwab cup having an internal reinforcing memberDRESSER IND·Filed 1980·Granted Mar 2, 1982·21 cites·9 claims
- 0853US4254962ASwab cup having long and short reinforcing membersDRESSER IND·Filed 1979·Granted Mar 10, 1981·17 cites·5 claims
- 0948US4040649AOil well tool with packing meansDRESSER IND·Filed 1975·Granted Aug 9, 1977·14 cites·5 claims
- 1043US4099451AOilwell swab cupDRESSER IND·Filed 1976·Granted Jul 11, 1978·11 cites·1 claims
- 1142US4106182AMethod of manufacturing an oilwell swab cupDRESSER IND·Filed 1976·Granted Aug 15, 1978·6 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →