Frank A. Sisk

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Eldorado, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Steel anchored reinforced mine seal
- Patent number 8,966,846
- Issue date Mar 3, 2015
- Frank A. Sisk
- E21 - EARTH DRILLING MINING
Information Patent Grant
Steel anchored reinforced mine seal
- Patent number 8,485,873
- Issue date Jul 16, 2013
- Frank A. Sisk
- E21 - EARTH DRILLING MINING
Information Patent Grant
Mine ventilation structure
- Patent number 5,879,231
- Issue date Mar 9, 1999
- Frank A. Sisk
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Steel Anchored Reinforced Mine Seal
- Publication number 20070297861
- Publication date Dec 27, 2007
- Frank A. Sisk
- E21 - EARTH DRILLING MINING