Inventor

NANAYAKKARA RAVI

US4 patents

⚠️ This page may combine multiple inventors who share the name “NANAYAKKARA RAVI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HALLIBURTON ENERGY SERVICES INC

2 patents

US11332979B2May 17, 2022

Driven rotary steering system having variable-aperture valve orifices

HALLIBURTON ENERGY SERVICES INC2 citations70

US11414931B2Aug 16, 2022

Driven rotary steering system having a variable-orifice valve

HALLIBURTON ENERGY SERVICES INC0 citations48

NANAYAKKARA RAVI

2 patents

US8674681B2Mar 18, 2014

Voltage detection and measurement circuit

NANAYAKKARA RAVI5 citations63

US9035737B2May 19, 2015

High speed transformer

NANAYAKKARA RAVI1 citations45