DSI TUNNELING LLC

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Louisville, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Tunnel support system and method
- Patent number 12,031,435
- Issue date Jul 9, 2024
- DSI TUNNELING LLC
- John M. Mulvoy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Underground support system and method
- Patent number 11,092,010
- Issue date Aug 17, 2021
- DSI TUNNELING LLC
- John M. Mulvoy
- E21 - EARTH DRILLING MINING
Information Patent Grant
Tunnel support system and method
- Patent number 11,021,955
- Issue date Jun 1, 2021
- DSI TUNNELING LLC
- John M. Mulvoy
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
TUNNEL SUPPORT SYSTEM AND METHOD
- Publication number 20210239003
- Publication date Aug 5, 2021
- DSI TUNNELING LLC
- John M. MULVOY
- E21 - EARTH DRILLING MINING
Information Patent Application
UNDERGROUND SUPPORT SYSTEM AND METHOD
- Publication number 20200263542
- Publication date Aug 20, 2020
- DSI TUNNELING LLC
- John M. MULVOY
- E21 - EARTH DRILLING MINING
Information Patent Application
TUNNEL SUPPORT SYSTEM AND METHOD
- Publication number 20200263543
- Publication date Aug 20, 2020
- DSI TUNNELING LLC
- John M. MULVOY
- E21 - EARTH DRILLING MINING

Trademarklast 30 trademarks