Assignee
LYON LELAND H
US·8 granted patents·1 pending application·34 citations·filing 2005–2011
Top patents by PatentIndex Score
9 records- 0184US8141663B2Down hole hammer having elevated exhaustLYON LELAND H·Filed 2011·Granted Mar 27, 2012·8 cites·6 claims
- 0273US8622152B2Down-the-hole drill hammer having a sliding exhaust check valveLYON LELAND H·Filed 2010·Granted Jan 7, 2014·5 cites·25 claims
- 0370US8439135B2Down-the-hole drill hammer having an extendable drill bit assemblyLYON LELAND H·Filed 2011·Granted May 14, 2013·4 cites·20 claims
- 0462US8915314B2Down-the-hole drill drive couplingLYON LELAND H·Filed 2009·Granted Dec 23, 2014·4 cites·6 claims
- 0560US8631884B2Pressure reversing valve assembly for a down-the-hole percussive drilling apparatusLYON LELAND H·Filed 2010·Granted Jan 21, 2014·1 cites·20 claims
- 0656US8800690B2Down-the-hole drill hammer having a reverse exhaust system and segmented chuck assemblyLYON LELAND H·Filed 2009·Granted Aug 12, 2014·4 cites·37 claims
- 0754US8397839B2Self-indexing down-the-hole drillLYON LELAND H·Filed 2009·Granted Mar 19, 2013·3 cites·22 claims
- 0846US2008067758A1Disassembleable Washer Device for Down-Hole DrillsLYON LELAND H·Filed 2005·Application pending·0 cites
- 0944USD656974SDrill bitLYON LELAND H·Filed 2011·Granted Apr 3, 2012·5 cites·1 claims
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