Assignee
RICHARDSON ALLAN STEWART
US·4 granted patents·53 citations·filing 2009–2014
Technology mixE21B4
Top patents by PatentIndex Score
4 records- 0191US9157286B2Portable pipe handling systemRICHARDSON ALLAN STEWART·Filed 2012·Granted Oct 13, 2015·16 cites·16 claims
- 0287US8109179B2Power tongRICHARDSON ALLAN STEWART·Filed 2009·Granted Feb 7, 2012·25 cites·19 claims
- 0384US8863621B2Power tongRICHARDSON ALLAN STEWART·Filed 2012·Granted Oct 21, 2014·7 cites·28 claims
- 0481US9528332B2Power tongRICHARDSON ALLAN STEWART·Filed 2014·Granted Dec 27, 2016·5 cites·25 claims
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