Kevin Jinrong Ma

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Cheswick, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Underground support
- Patent number 11,131,189
- Issue date Sep 28, 2021
- FCI Holdings Delaware, Inc.
- Kevin J. Ma
- E21 - EARTH DRILLING MINING
Information Patent Grant
Impact resistant lagging, method for designing impact resistant lag...
- Patent number 9,249,663
- Issue date Feb 2, 2016
- FCI Holdings Delaware, Inc.
- Kevin Jinrong Ma
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Underground Support
- Publication number 20200173280
- Publication date Jun 4, 2020
- FCI Holdings Delaware, Inc.
- Kevin J. Ma
- E21 - EARTH DRILLING MINING
Information Patent Application
Corrosion Resistant Expandable Bolt
- Publication number 20180135411
- Publication date May 17, 2018
- FCI HOLDINGS DELAWARE, INC.
- John C. Stankus
- B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information Patent Application
Overcast System for Mine Ventilation
- Publication number 20170191365
- Publication date Jul 6, 2017
- FCI HOLDINGS DELAWARE, INC.
- John C. Stankus
- E04 - BUILDING
Information Patent Application
Apparatus for Testing Impact Resistant Lagging
- Publication number 20160178497
- Publication date Jun 23, 2016
- FCI HOLDINGS DELAWARE, INC.
- Kevin Jinrong Ma
- G01 - MEASURING TESTING
Information Patent Application
Impact Resistant Lagging, Method For Designing Impact Resistant Lag...
- Publication number 20100266349
- Publication date Oct 21, 2010
- Jennmar Corporation
- Kevin Jinrong Ma
- E21 - EARTH DRILLING MINING