Geoffrey R. Robbins

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Pymble, AU

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Patents Grantslast 30 patents

Information Patent Grant
Method of making an inflatable gas bag for use as a borehole plug
- Patent number 6,722,105
- Issue date Apr 20, 2004
- Stemlock, Incorporated
- Sanford S. Jenkins
- E21 - EARTH DRILLING MINING
Information Patent Grant
Inflatable gas bag for use as a borehole plug
- Patent number 6,619,387
- Issue date Sep 16, 2003
- Stemlock, Incorporated
- Sanford S. Jenkins
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Inflatable gas bag for use as a borehole plug
- Publication number 20040007147
- Publication date Jan 15, 2004
- Stemlock, Incorporated
- Sanford S. Jenkins
- E21 - EARTH DRILLING MINING
Information Patent Application
Inflatable gas bag for use as a borehole plug
- Publication number 20030177932
- Publication date Sep 25, 2003
- Stemlock, Incorporated
- Sanford S. Jenkins
- E21 - EARTH DRILLING MINING
Information Patent Application
Inflatable gas bag for use as a borehole plug
- Publication number 20030047307
- Publication date Mar 13, 2003
- Sanford S. Jenkins
- E21 - EARTH DRILLING MINING