Presssol Ltd.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Presssol Ltd..The latest application filed is for "downhole blowout preventor".

Company Profile

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Presssol Ltd. - Calgary CA
PRESSSOL LTD. - 8 Lake Placid Bay SE Calgary CA
PressSol Ltd. - Alberta CA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.
Trademarks

Patent Activity

Patent	Date
Downhole blowout preventor Grant 8,408,337 - Livingstone April 2, 2	2013-04-02
Well cementing apparatus and method Grant 7,540,325 - Livingstone June 2, 2	2009-06-02
Downhole Blowout Preventor App 20080289878 - LIVINGSTONE; JAMES I.	2008-11-27
Method And Apparatus For Isolating And Testing Zones During Reverse Circulation Drilling App 20080099195 - LIVINGSTONE; JAMES I.	2008-05-01
Method and apparatus for isolating and testing zones during reverse circulation drilling Grant 7,343,983 - Livingstone March 18, 2	2008-03-18
Well Cementing Apparatus And Method App 20070084603 - LIVINGSTONE; JAMES	2007-04-19
Reverse circulation directional and horizontal drilling using concentric drill string Grant 7,204,327 - Livingstone April 17, 2	2007-04-17
Method And Apparatus For Cementing A Well Using Concentric Tubing Or Drill Pipe App 20060219407 - Livingstone; James I.	2006-10-05
Reverse circulation directional and horizontal drilling using concentric coil tubing Grant 7,066,283 - Livingstone June 27, 2	2006-06-27
Casing Degasser Tool App 20050252661 - Livingstone, James I.	2005-11-17
Method And Apparatus For Isolating And Testing Zones During Reverse Circulation Drilling App 20050224228 - Livingstone, James I.	2005-10-13
Downhole Blowout Preventor App 20050178586 - Livingstone, James I.	2005-08-18
Method And Apparatus For Isolating And Testing Zones During Reverse Circulation Drilling App 20050178562 - Livingstone, James I.	2005-08-18
Two string drilling system Grant 6,892,829 - Livingstone May 17, 2	2005-05-17

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