Assignee
LANDRY HAROLD WAYNE
US·3 granted patents·24 citations·filing 2007–2019
Technology mixE21B3
Top patents by PatentIndex Score
3 records- 0181US10352123B2Wellhead safety valve assemblyLANDRY HAROLD WAYNE·Filed 2015·Granted Jul 16, 2019·6 cites·7 claims
- 0274US7469754B2Apparatus for slant drillingLANDRY HAROLD WAYNE·Filed 2007·Granted Dec 30, 2008·18 cites·20 claims
- 0352US11512549B2Well surface safety valve assembly with a ball valve and back pressure valveLANDRY HAROLD WAYNE·Filed 2019·Granted Nov 29, 2022·0 cites·7 claims
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