David CHANDOS

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Salado, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Gamma detector protection for downhole operations
- Patent number 10,649,099
- Issue date May 12, 2020
- Tolteq Group, LLC
- Paul R. Deere
- E21 - EARTH DRILLING MINING
Information Patent Grant
Snubber for downhole tool
- Patent number 10,196,864
- Issue date Feb 5, 2019
- Tolteq Group, LLC
- Paul R. Deere
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Snubber for Downhole Tool
- Publication number 20190119994
- Publication date Apr 25, 2019
- Tolteq Group, LLC
- R. Paul Deere
- E21 - EARTH DRILLING MINING
Information Patent Application
GAMMA DETECTOR PROTECTION FOR DOWNHOLE OPERATIONS
- Publication number 20170184731
- Publication date Jun 29, 2017
- Tolteq Group, LLC
- Paul R. DEERE
- G01 - MEASURING TESTING
Information Patent Application
MATING CONNECTOR FOR DOWNHOLE TOOL
- Publication number 20170044840
- Publication date Feb 16, 2017
- Tolteq Group, LLC
- Paul R. DEERE
- E21 - EARTH DRILLING MINING
Information Patent Application
SNUBBER FOR DOWNHOLE TOOL
- Publication number 20170044845
- Publication date Feb 16, 2017
- Tolteq Group, LLC
- Paul R. DEERE
- E21 - EARTH DRILLING MINING