Jinrong Ma

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Cheswick, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Engineered mine seal
- Patent number 9,011,043
- Issue date Apr 21, 2015
- FCI Holdings Delaware, Inc.
- John C. Stankus
- E21 - EARTH DRILLING MINING
Information Patent Grant
Stress, geologic, and support analysis methodology for underground...
- Patent number 8,224,631
- Issue date Jul 17, 2012
- FCI Holdings Delaware, Inc.
- John C. Stankus
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Engineered Mine Seal
- Publication number 20120027521
- Publication date Feb 2, 2012
- FCI HOLDINGS DELAWARE, INC.
- John C. Stankus
- E21 - EARTH DRILLING MINING
Information Patent Application
Stress, Geologic, and Support Analysis Methodology for Underground...
- Publication number 20100042381
- Publication date Feb 18, 2010
- Jennmar Corporation
- John C. Stankus
- E21 - EARTH DRILLING MINING