Inventor
DESAI PRAFUL C
US22 patents
⚠️ This page may combine multiple inventors who share the name “DESAI PRAFUL C”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH INTERNATIONAL
15 patentsUS6612383B2Sep 2, 2003
Method and apparatus for milling well casing and drilling formation
SMITH INTERNATIONAL126 citations98
US6648068B2Nov 18, 2003
One-trip milling system
SMITH INTERNATIONAL62 citations96
US4693328ASep 15, 1987
Expandable well drilling tool
SMITH INTERNATIONAL124 citations95
US4660657AApr 28, 1987
Underreamer
SMITH INTERNATIONAL99 citations95
US6752211B2Jun 22, 2004
Method and apparatus for multilateral junction
SMITH INTERNATIONAL82 citations94
US7207401B2Apr 24, 2007
One trip milling system
SMITH INTERNATIONAL32 citations92
US5010967AApr 30, 1991
Milling apparatus with replaceable blades
SMITH INTERNATIONAL48 citations92
US4696502ASep 29, 1987
Dual string packer mill
SMITH INTERNATIONAL45 citations92
US7762330B2Jul 27, 2010
Methods of making multiple casing cuts
SMITH INTERNATIONAL37 citations84
US7753139B2Jul 13, 2010
Cutting device with multiple cutting structures
SMITH INTERNATIONAL6 citations74
US7699120B2Apr 20, 2010
On demand actuation system
SMITH INTERNATIONAL7 citations74
US8893826B2Nov 25, 2014
Optimized reaming system based upon weight on tool
SMITH INTERNATIONAL4 citations73
US9617791B2Apr 11, 2017
Sidetracking system and related methods
SMITH INTERNATIONAL0 citations51
US9512680B2Dec 6, 2016
Coring bit to whipstock systems and methods
SMITH INTERNATIONAL0 citations51
US10156097B2Dec 18, 2018
Downhole tool for increasing a wellbore diameter
SMITH INTERNATIONAL0 citations39
DEWEY CHARLES H
4 patentsUS8459357B2Jun 11, 2013
Milling system and method of milling
DEWEY CHARLES H7 citations83
US8186458B2May 29, 2012
Expandable window milling bit and methods of milling a window in casing
DEWEY CHARLES H9 citations83
US8122977B2Feb 28, 2012
Cutting device with multiple cutting structures
DEWEY CHARLES H12 citations83
US8881845B2Nov 11, 2014
Expandable window milling bit and methods of milling a window in casing
DEWEY CHARLES H4 citations72