Inventor

FILIPPOV ANDREI

US4 patents

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

SHELL OIL CO

3 patents

US6892819B2May 17, 2005

Forming a wellbore casing while simultaneously drilling a wellbore

SHELL OIL CO141 citations98

US6640903B1Nov 4, 2003

Forming a wellbore casing while simultaneously drilling a wellbore

SHELL OIL CO139 citations97

US7240728B2Jul 10, 2007

Expandable tubulars with a radial passage and wall portions with different wall thicknesses

SHELL OIL CO47 citations96

COOK ROBERT LANCE

1 patent

US8205680B2Jun 26, 2012

Expandable connection

COOK ROBERT LANCE2 citations54