Douglas James Belshaw

Person

Georgetown, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Sample extraction system for boreholes
- Patent number 7,222,668
- Issue date May 29, 2007
- Solinst Canada Limited
- Jamieson Edward Champ
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for measuring and recording data from boreholes
- Patent number 6,843,119
- Issue date Jan 18, 2005
- Solinst Canada Limited
- Ronald Ernest Russell Patey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Sample extraction system for boreholes
- Patent number 6,758,274
- Issue date Jul 6, 2004
- Solinst Canada Limited
- John Howard C. Parent
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for measuring and recording data from boreholes
- Patent number 6,550,321
- Issue date Apr 22, 2003
- Solinst Canada Limited
- Ronald Ernest Russell Patey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for measuring and recording data from boreholes
- Patent number 6,158,276
- Issue date Dec 12, 2000
- Solinst Canada Limited
- Ronald Ernest Russell Patey
- E21 - EARTH DRILLING MINING
Information Patent Grant
Down-hole liquid detecting apparatus
- Patent number 5,237,857
- Issue date Aug 24, 1993
- Solinst Canada Limited
- Andrew R. Dobson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Borehole packer
- Patent number 5,195,583
- Issue date Mar 23, 1993
- Solinst Canada Ltd.
- Donald A. Toon
- E21 - EARTH DRILLING MINING
Information Patent Grant
Packing-seal for boreholes
- Patent number 5,048,605
- Issue date Sep 17, 1991
- University of Waterloo
- Donald A. Toon
- E21 - EARTH DRILLING MINING
Information Patent Grant
Water level probe
- Patent number 5,031,452
- Issue date Jul 16, 1991
- Solinst Canada Limited
- Andrew R. Dobson
- E21 - EARTH DRILLING MINING
Information Patent Grant
Liquid-level detector
- Patent number 4,989,452
- Issue date Feb 5, 1991
- Solinst Canada Ltd.
- Donald A. Toon
- E21 - EARTH DRILLING MINING
Information Patent Grant
Groundwater sampling apparatus
- Patent number 4,928,541
- Issue date May 29, 1990
- Solinst Canada Limited
- Donald A. Toon
- E21 - EARTH DRILLING MINING
Information Patent Grant
Probe for detecting the presence of magnetic material in a ground hole
- Patent number 4,902,976
- Issue date Feb 20, 1990
- Solinst Canada Limited
- Douglas J. Belshaw
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Sample extraction system for boreholes
- Publication number 20040261992
- Publication date Dec 30, 2004
- Douglas James Belshaw
- E21 - EARTH DRILLING MINING
Information Patent Application
Bladder pump for borehole sampling
- Publication number 20040184938
- Publication date Sep 23, 2004
- Jamieson Edward Champ
- E21 - EARTH DRILLING MINING
Information Patent Application
Apparatus for measuring and recording data from boreholes
- Publication number 20030084716
- Publication date May 8, 2003
- Solinst Canada Limited
- Ronald Ernest Russell Patey
- E21 - EARTH DRILLING MINING
Information Patent Application
Sample extraction system for boreholes
- Publication number 20020134556
- Publication date Sep 26, 2002
- John Howard C. Parent
- E21 - EARTH DRILLING MINING

Douglas James Belshaw

Person

Patents Grantslast 30 patents

Sample extraction system for boreholes

Apparatus for measuring and recording data from boreholes

Sample extraction system for boreholes

Apparatus for measuring and recording data from boreholes

Apparatus for measuring and recording data from boreholes

Down-hole liquid detecting apparatus

Borehole packer

Packing-seal for boreholes

Water level probe

Liquid-level detector

Groundwater sampling apparatus

Probe for detecting the presence of magnetic material in a ground hole

Patents Applicationslast 30 patents

Sample extraction system for boreholes

Bladder pump for borehole sampling

Apparatus for measuring and recording data from boreholes

Sample extraction system for boreholes