Inventor · disambiguated record
Lawrence Barr
Also filed as: BARR LAWRENCE · BARR LAWRENCE R · BARR LAWRENCE ROBERT
4 granted patents·283 citations·filing 1996–2009
79Inventor score
Technology areasE21B
Top patents by PatentIndex Score
4 records- 0192US6173795B1Multi-cycle circulating subSMITH INTERNATIONAL·Filed 1997·Granted Jan 16, 2001·194 cites·17 claims
- 0274US6095249ADown hole bypass valveFiled 1996·Granted Aug 1, 2000·74 cites·10 claims
- 0340US8967270B2Rigless abandonment systemDESAI PRAFUL C·Filed 2009·Granted Mar 3, 2015·1 cites·19 claims
- 0437US6516878B1Downhole tension swivel subSMITH INTERNATIONAL·Filed 1999·Granted Feb 11, 2003·14 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →