John Dewar

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Edinburgh, GB

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Patents Grantslast 30 patents

Information Patent Grant
Downhole sealing assembly with swellable seal
- Patent number 9,732,578
- Issue date Aug 15, 2017
- Swellfix BV
- Graeme McRobb
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sealing assembly
- Patent number 8,833,473
- Issue date Sep 16, 2014
- Swellfix BV
- Graeme McRobb
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Downhole seal
- Patent number 8,727,027
- Issue date May 20, 2014
- Swellfix BV
- Paul Schilte
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wellbore delivery apparatus
- Patent number 8,025,102
- Issue date Sep 27, 2011
- Swellfix BV
- John Dewar
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DOWNHOLE SEALING ASSEMBLY WITH SWELLABLE SEAL
- Publication number 20140352983
- Publication date Dec 4, 2014
- Swellfix BV
- Graeme McRobb
- E21 - EARTH DRILLING MINING
Information Patent Application
Downhole Seal
- Publication number 20120138315
- Publication date Jun 7, 2012
- Swellfix BV
- John Dewar
- E21 - EARTH DRILLING MINING
Information Patent Application
DOWNHOLE SEAL
- Publication number 20110193291
- Publication date Aug 11, 2011
- Paul Schilte
- E21 - EARTH DRILLING MINING
Information Patent Application
SEALING ASSEMBLY
- Publication number 20100307771
- Publication date Dec 9, 2010
- Swellfix BV
- Graeme McRobb
- E21 - EARTH DRILLING MINING
Information Patent Application
SEALING ASSEMBLY
- Publication number 20100300689
- Publication date Dec 2, 2010
- Swellfix BV
- Graeme McRobb
- E21 - EARTH DRILLING MINING
Information Patent Application
WELLBORE DELIVERY APPARATUS
- Publication number 20090200028
- Publication date Aug 13, 2009
- Swellfix BV
- John Dewar
- E21 - EARTH DRILLING MINING