Inventor · disambiguated record
Ravi P. Nanayakkara
Also filed as: NANAYAKKARA RAVI · NANAYAKKARA RAVI P · NANAYAKKARA RAVI PRABATH
15 granted patents·20 citations·filing 2010–2020
88Inventor score
Top patents by PatentIndex Score
15 records- 0180US10655447B2Rotary steerable drilling tool and methodHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted May 19, 2020·3 cites·16 claims
- 0278US8674681B2Voltage detection and measurement circuitNANAYAKKARA RAVI·Filed 2010·Granted Mar 18, 2014·5 cites·20 claims
- 0377US11788357B2Using solenoid characteristics for performance diagnostics on rotary steerable systemsHALLIBURTON ENERGY SERVICES INC·Filed 2018·Granted Oct 17, 2023·2 cites·20 claims
- 0476US11332979B2Driven rotary steering system having variable-aperture valve orificesHALLIBURTON ENERGY SERVICES INC·Filed 2018·Granted May 17, 2022·2 cites·20 claims
- 0573US11293229B2Autonomously driven rotary steering systemHALLIBURTON ENERGY SERVICES INC·Filed 2018·Granted Apr 5, 2022·2 cites·20 claims
- 0673US10563461B2Hybrid drive for a fully rotating downhole toolHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Feb 18, 2020·2 cites·20 claims
- 0764US9970236B2Mitigating stick-slip effects in rotary steerable toolsHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted May 15, 2018·2 cites·21 claims
- 0860US11371334B2Rotary steerable drilling tool and methodHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Jun 28, 2022·0 cites·24 claims
- 0959US10871063B2Toolface control with pulse width modulationHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Dec 22, 2020·1 cites·16 claims
- 1059US9035737B2High speed transformerNANAYAKKARA RAVI·Filed 2010·Granted May 19, 2015·1 cites·16 claims
- 1152US11655708B2Telemetry using pulse shape modulationHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted May 23, 2023·0 cites·19 claims
- 1248US11448064B2Compressible load shoulder for dampening shock in downhole telemetry toolHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Sep 20, 2022·0 cites·20 claims
- 1348US11352856B2Downhole power generation and directional drilling toolHALLIBURTON ENERGY SERVICES INC·Filed 2017·Granted Jun 7, 2022·0 cites·16 claims
- 1447US11293230B2Rotary steerable tool with independent actuatorsHALLIBURTON ENERGY SERVICES INC·Filed 2018·Granted Apr 5, 2022·0 cites·17 claims
- 1545US11414931B2Driven rotary steering system having a variable-orifice valveHALLIBURTON ENERGY SERVICES INC·Filed 2018·Granted Aug 16, 2022·0 cites·12 claims
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