Inventor

Djurre Hans Zijsling

Inventor

Rijswijk, NL

Overview

51→

Patents

1986–2020

Patent span

Fixed constructions

Primary field (CPC E)

Patents· 51 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

E21Bprimary

E21BEarth or rock drilling69%

B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material6%

B23KSoldering or unsoldering6%

F16LPipes4%

Y10TTechnical subjects covered by former us classification4%

C10MLubricating compositions1%

C10NIndexing scheme associated with subclass c10m relating to lubricating compositions1%

C23CCoating metallic material1%

C25DProcesses for the electrolytic or electrophoretic production of coatings1%

F15BSystems acting by means of fluids in general1%

PatentTitleYear

10,858,915Reducing swab pressure generated behind a well liner expansion cone2020 10,801,285Retrievable self-energizing top anchor tool2020 10,655,425Method and system for sealing an annulur space around an expanded well tubular2020 10,648,298Method of expanding a tubular and expandable tubular2020 10,597,961Method and system for locking an upper end of an expanded tubular within a host casing2020 10,577,900Expansion assembly, top anchor and method for expanding a tubular in a wellbore2020 10,570,710Method and system for sealing a segmented expandable cone2020 10,450,846Hybrid push and pull method and system for expanding well tubulars2019 10,287,827Low break out safety joint and method for releasably connecting a tubing expansion assembly to a drill string2019 10,036,235Assembly and method for expanding a tubular element2018 10,000,990System and method for creating a sealing tubular connection in a wellbore2018 9,951,588Expansion assembly, top anchor and method for expanding a tubular in a wellbore2018 9,822,614'Combined casing system and method'2017 9,677,179'Pipe connector and method'2017 9,617,800'Connector assembly'2017 9,422,794'System for lining a wellbore'2016 9,366,117'Method and system for lining a section of a wellbore with an expandable tubular element'2016 9,004,184'Method and wellbore system'2015 8,997,857'System and method for anchoring an expandable tubular to a borehole wall'2015 8,997,856'System and method for anchoring an expandable tubular to a borehole wall'2015 8,973,654'System and method for anchoring an expandable tubular to a borehole wall'2015 8,726,985'Expanding a tubular element in a wellbore'2014 8,720,588'Method and system for fixing an element in a borehole'2014 8,522,866'System and method for anchoring an expandable tubular to a borehole wall'2013 7,774,917'Forge welding tubulars'2010 7,681,636'Pipe expander'2010 7,474,221'Marking of pipe joints'2009 7,467,671'Drill bit with protection member'2008 7,464,774'Drill bit and system for drilling a borehole'2008 7,451,811'Expanding a tubular element to different inner diameters'2008 7,389,822'Expander system for incremental expansion of a tubular element'2008 7,383,900'Drill bit and system for drilling a borehole'2008 7,360,604'Expander system for stepwise expansion of a tubular element'2008 7,282,663'Forge welding process'2007 7,252,162'Method and device for injecting a fluid into a formation'2007 7,181,821'Joining expandable tubulars'2007 7,104,344'Percussion drilling head'2006 6,971,458'Drill bit'2005 6,953,098'Hydraulic drill string accumulator'2005 6,371,211'Method of creating a weld in a wellbore'2002 6,176,313'Method and tool for fracturing an underground formation'2001 5,806,611'Device for controlling weight on bit of a drilling assembly'1998 5,197,554'Rotary drill bit for drilling through sticky formations'1993 5,174,391'Tubular element for use in a rotary drilling assembly and method'1992 4,926,950'Method for monitoring the wear of a rotary type drill bit'1990 4,854,399'Tubular element for use in a rotary drilling assembly'1989 4,844,180'Downhole drilling motor'1989 4,830,124'Rotary drill bit'1989 4,792,001'Rotary drill bit'1988 4,624,330'Rotary drill bit with strainer element'1986 4,607,711'Rotary drill bit with cutting elements having a thin abrasive front layer'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1986–2020Patents assigned to SHELL OIL CO (43)· patent assignee history

1986–2020Based in Rijswijk, NL· patent location history

1989–1993Based in Assen, NL· patent location history

2013–2016Patents assigned to ZIJSLING DJURRE HANS (9)· patent assignee history

2013–2016Patents assigned to WUBBEN ANTONIUS LEONARDUS MARIA (7)· patent assignee history

2013–2016Patents assigned to ENVENTURE GLOBAL TECHNOLOGY (5)· patent assignee history

2013Based in Kesslerpark, NL· patent location history

2015–2016Patents assigned to DI CRESCENZO DANIELE (2)· patent assignee history

2020Based in Rijwsijk, NL· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SHELL OIL CO	43	1986–2020
ZIJSLING DJURRE HANSself	9	2013–2016
WUBBEN ANTONIUS LEONARDUS MARIA	7	2013–2016
ENVENTURE GLOBAL TECHNOLOGY	5	2013–2016
DI CRESCENZO DANIELE	2	2015–2016

Locations

Location	Patents	Span
Rijswijk, NL	47	1986–2020
Assen, NL	2	1989–1993
Rijwsijk, NL	1	2020
Kesslerpark, NL	1	2013