Dennis BURCA

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Calgary, CA

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Patents Grantslast 30 patents

Information Patent Grant
Slot recovery method
- Patent number 11,377,921
- Issue date Jul 5, 2022
- Dennis Burca
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Slot Recovery Method
- Publication number 20220290519
- Publication date Sep 15, 2022
- Dennis Burca
- E21 - EARTH DRILLING MINING
Information Patent Application
Slot Recover Method
- Publication number 20200408056
- Publication date Dec 31, 2020
- Dennis Burca
- E21 - EARTH DRILLING MINING
Information Patent Application
COLLAPSIBLE MULTI-SIZED DRILL BIT AND METHOD OF USE
- Publication number 20180266186
- Publication date Sep 20, 2018
- Dennis Burca
- E21 - EARTH DRILLING MINING
Information Patent Application
REVERSE CIRCULATION DRILLING SYSTEM, APPARATUS AND METHOD
- Publication number 20130133953
- Publication date May 30, 2013
- Dennis BURCA
- E21 - EARTH DRILLING MINING