Inventor · disambiguated record
Kenneth Ahlhorn
Also filed as: AHLHORN KENNETH · AHLHORN KENNETH WAYNE
4 granted patents·117 citations·filing 1993–2008
78Inventor score
Technology areasE21B
Top patents by PatentIndex Score
4 records- 0166US5407021ADown-the-hole hammer drill having reverse circulationSANDVIK ROCK TOOLS AB·Filed 1993·Granted Apr 18, 1995·48 cites·22 claims
- 0263US6131672APercussive down-the-hole rock drilling hammer and piston thereforSANDVIK AB·Filed 2000·Granted Oct 17, 2000·36 cites·6 claims
- 0348US6062322APrecussive down-the-hole rock drilling hammerSANDVIK AB·Filed 1998·Granted May 16, 2000·32 cites·7 claims
- 0442US7857076B2Force balancing system for use with a well bore toolJAVINS CORP·Filed 2008·Granted Dec 28, 2010·1 cites·37 claims
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