Inventor · disambiguated record
Warren T. Lay
Also filed as: LAY WARREN T · LAY WARREN THOMAS
16 granted patents·306 citations·filing 1992–2023
94Inventor score
Top patents by PatentIndex Score
16 records- 0189US6237704B1Backhead and check valve for down-hole drillsINGERSOLL RAND CO·Filed 2000·Granted May 29, 2001·31 cites·4 claims
- 0288US7467675B2Device for channeling solids and fluids within a reverse circulation drillATLAS COPCO SECOROC LLC·Filed 2006·Granted Dec 23, 2008·37 cites·35 claims
- 0384US8141663B2Down hole hammer having elevated exhaustLYON LELAND H·Filed 2011·Granted Mar 27, 2012·8 cites·6 claims
- 0476US8011455B2Down hole hammer having elevated exhaustATLAS COPCO SECOROC LLC·Filed 2009·Granted Sep 6, 2011·14 cites·8 claims
- 0575US6474910B2Rockbolt assemblyINGERSOLL RAND CO·Filed 2001·Granted Nov 5, 2002·29 cites·17 claims
- 0675US6170581B1Backhead and check valve for down-hole drillsINGERSOLL RAND CO·Filed 1999·Granted Jan 9, 2001·28 cites·16 claims
- 0773US8622152B2Down-the-hole drill hammer having a sliding exhaust check valveLYON LELAND H·Filed 2010·Granted Jan 7, 2014·5 cites·25 claims
- 0870US8439135B2Down-the-hole drill hammer having an extendable drill bit assemblyLYON LELAND H·Filed 2011·Granted May 14, 2013·4 cites·20 claims
- 0968US5301761APressure reversing valve for a fluid-actuated, percussive drilling apparatusINGERSOLL RAND CO·Filed 1993·Granted Apr 12, 1994·49 cites·7 claims
- 1067US6799641B1Percussive drill with adjustable flow controlATLAS COPCO AB·Filed 2003·Granted Oct 5, 2004·34 cites·20 claims
- 1162US5325926AReversible casing for a down-the-hole percussive apparatusINGERSOLL RAND CO·Filed 1993·Granted Jul 5, 1994·35 cites·10 claims
- 1260US8631884B2Pressure reversing valve assembly for a down-the-hole percussive drilling apparatusLYON LELAND H·Filed 2010·Granted Jan 21, 2014·1 cites·20 claims
- 1359US12291925B1Underreamer drill hammerCENTER ROCK INC·Filed 2023·Granted May 6, 2025·0 cites·21 claims
- 1456US8800690B2Down-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
- 1548US5207283AReversible bit bearingINGERSOLL RAND CO·Filed 1992·Granted May 4, 1993·22 cites·11 claims
- 1644USD656974SDrill bitLYON LELAND H·Filed 2011·Granted Apr 3, 2012·5 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →