Inventor · disambiguated record
David Louis Richard
Also filed as: RICHARD DAVID LOUIS
5 granted patents·90 citations·filing 2004–2021
79Inventor score
Top patents by PatentIndex Score
5 records- 0177US7794192B2Apparatus for handling and racking pipesIRON DERRICKMAN LTD·Filed 2007·Granted Sep 14, 2010·25 cites·12 claims
- 0274US11078735B2Passive rotating jointed tubular injectorAUTOMATED RIG TECH LTD·Filed 2019·Granted Aug 3, 2021·3 cites·20 claims
- 0374US7967541B2Apparatus for handling and racking pipesWEATHERFORD CANADA PARTNERSHIP·Filed 2009·Granted Jun 28, 2011·16 cites·12 claims
- 0469US7331746B2Apparatus for handling and racking pipesIRON DERRICKMAN LTD·Filed 2004·Granted Feb 19, 2008·46 cites·2 claims
- 0538US11519228B2Jointed pipe injector trigger mechanismAUTOMATED RIG TECH LTD·Filed 2021·Granted Dec 6, 2022·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →