Inventor · disambiguated record
Dale R. Wolfer
Also filed as: WOLFER DALE R · WOLFER DALE RICHARD
10 granted patents·2 pending applications·203 citations·filing 1982–2011
90Inventor score
Files withINGERSOLL RAND CO4WOLFER DALE RICHARD3ATLAS COPCO SECOROC LLC1HUGHES TOOL CO1PLUNKETT TIMOTHY J1
Top patents by PatentIndex Score
12 records- 0178US8100200B2Chuck assembly for a down-hole drillWOLFER DALE RICHARD·Filed 2009·Granted Jan 24, 2012·11 cites·24 claims
- 0273US5562170ASelf-lubricating, fluid-actuated, percussive down-the-hole drillINGERSOLL RAND CO·Filed 1995·Granted Oct 8, 1996·67 cites·10 claims
- 0365US8561730B2Foot valve assembly for a down hole drillYAO JING JAMES·Filed 2010·Granted Oct 22, 2013·3 cites·29 claims
- 0461US5711205ASelf-lubricating, fluid-actuated, percussive down-the-hole drillINGERSOLL RAND CO·Filed 1996·Granted Jan 27, 1998·37 cites·1 claims
- 0556US8550189B2Drive pin supportWOLFER DALE RICHARD·Filed 2009·Granted Oct 8, 2013·2 cites·22 claims
- 0655US8215419B2Variable frequency control for down hole drill and methodPLUNKETT TIMOTHY J·Filed 2009·Granted Jul 10, 2012·5 cites·19 claims
- 0754US5794516APiston for a self-lubricating, fluid-actuated, percussive down-the-hole drillINGERSOLL RAND CO·Filed 1995·Granted Aug 18, 1998·29 cites·3 claims
- 0852US5566771AReversible casing for a self-lubricating, fluid-actuated, percussive down-the-hole drillINGERSOLL RAND CO·Filed 1995·Granted Oct 22, 1996·31 cites·7 claims
- 0947US4557339ABorehole conditioning apparatusHUGHES TOOL CO·Filed 1982·Granted Dec 10, 1985·18 cites·45 claims
- 1041US2010263932A1Bit retainer assembly for a down-hole drillWOLFER DALE RICHARD·Filed 2009·Application pending·0 cites
- 1138US2012103692A1Method and system for drilling using gas as a drilling fluidWHITE JEFFREY P·Filed 2011·Application pending·0 cites
- 1236US7832504B2Exhaust valve and bit assembly for down-hole percussive drillsATLAS COPCO SECOROC LLC·Filed 2006·Granted Nov 16, 2010·0 cites·30 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →