Inventor

KAPTEIJN PIETER KAREL ANTON

NL7 patents

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

SHELL OIL CO

3 patents

US6742585B1Jun 1, 2004

Sealing off openings through the wall of a well tubular

SHELL OIL CO25 citations91

US7672825B2Mar 2, 2010

Closed loop control system for controlling production of hydrocarbon fluid from an underground formation

SHELL OIL CO43 citations86

US7347282B2Mar 25, 2008

Steerable soil penetration system

SHELL OIL CO8 citations71

ALFA LAVAL ROTTERDAM B V

2 patents

US12497135B2Dec 16, 2025

Belt and method for reducing the drag of a hull of a floating vessel

ALFA LAVAL ROTTERDAM B V0 citations54

US12209377B2Jan 28, 2025

Device for attenuating underwater sound pressure and the use of such a device

ALFA LAVAL ROTTERDAM B V0 citations54

EDMONSTONE GRAHAM

1 patent

US9476274B2Oct 25, 2016

Apparatus and system and method of measuring data in a well extending below surface

EDMONSTONE GRAHAM9 citations70

KAPTEIJN PIETER KAREL ANTON

1 patent

US9611010B2Apr 4, 2017

Reducing drag of a hull of a ship

KAPTEIJN PIETER KAREL ANTON5 citations65