Inventor · disambiguated record
Derrel D. Webb
Also filed as: WEBB DERREL D
11 granted patents·413 citations·filing 1975–1987
93Inventor score
Top patents by PatentIndex Score
11 records- 0186US4606417APressure equalized stabilizer apparatus for drill stringWEBB DERREL D·Filed 1985·Granted Aug 19, 1986·84 cites·3 claims
- 0285US3955621ARiser assemblyHOUSTON ENGINEERS INC·Filed 1975·Granted May 11, 1976·60 cites·8 claims
- 0382US4552230ADrill string shock absorberANDERSON EDWIN A·Filed 1984·Granted Nov 12, 1985·63 cites·18 claims
- 0481US4109736ADouble acting jarWEBB DERREL D·Filed 1977·Granted Aug 29, 1978·50 cites·33 claims
- 0574US3998443AMultidirectional shock absorbing deviceANDERSON EDWIN A·Filed 1975·Granted Dec 21, 1976·36 cites·18 claims
- 0666US4846273AJar mechanism acceleratorANDERSON EDWIN A·Filed 1987·Granted Jul 11, 1989·38 cites·48 claims
- 0758US4226289AIndependent one-way acting hydraulic jar sections for a rotary drill stringWEBB DERREL D·Filed 1979·Granted Oct 7, 1980·20 cites·18 claims
- 0854US4023847AOvershot toolHOUSTON ENGINEERS INC·Filed 1975·Granted May 17, 1977·18 cites·7 claims
- 0951US4545444AJar mechanism energizerWEBB DERREL D·Filed 1984·Granted Oct 8, 1985·19 cites·36 claims
- 1045US3963081ADouble acting mechanical jarANDERSON EDWIN A·Filed 1975·Granted Jun 15, 1976·13 cites·19 claims
- 1144US4647085ASealing arrangement for pin and box threaded connection of tubular membersANDERSON EDWIN A·Filed 1985·Granted Mar 3, 1987·12 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →