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Patents Grantslast 30 patents

Information Patent Grant
Retrievable re-connecting device with internal seal and slips for c...
- Patent number 10,689,918
- Issue date Jun 23, 2020
- VANGUARD OIL TOOLS & SERVICES LLC
- Len Barton
- E21 - EARTH DRILLING MINING
Information Patent Grant
Joint element, a casing string including such a joint element and a...
- Patent number 10,513,893
- Issue date Dec 24, 2019
- VANGUARD OIL TOOLS & SERVICES LLC
- Borre Loviknes
- E21 - EARTH DRILLING MINING
Information Patent Grant
Temperature activated zonal isolation packer device
- Patent number 10,472,921
- Issue date Nov 12, 2019
- VANGUARD OIL TOOLS & SERVICES LLC
- Len Barton
- E21 - EARTH DRILLING MINING
Information Patent Grant
Thermally expandable casing collar
- Patent number 9,982,493
- Issue date May 29, 2018
- VANGUARD OIL TOOLS & SERVICES LLC
- Borre Loviknes
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
THERMALLY EXPANDABLE CASING COLLAR
- Publication number 20180371847
- Publication date Dec 27, 2018
- VANGUARD OIL TOOLS & SERVICES LLC
- Borre Loviknes
- E21 - EARTH DRILLING MINING
Information Patent Application
TEMPERATURE ACTIVATED ZONAL ISOLATION PACKER DEVICE
- Publication number 20170321516
- Publication date Nov 9, 2017
- VANGUARD OIL TOOLS & SERVICES LLC
- Len BARTON
- E21 - EARTH DRILLING MINING
Information Patent Application
RETRIEVABLE RE-CONNECTING DEVICE WITH INTERNAL SEAL AND SLIPS FOR C...
- Publication number 20170314338
- Publication date Nov 2, 2017
- VANGUARD OIL TOOLS & SERVICES LLC
- Len BARTON
- E21 - EARTH DRILLING MINING
Information Patent Application
THERMALLY EXPANDABLE CASING COLLAR
- Publication number 20150167401
- Publication date Jun 18, 2015
- VANGUARD OIL TOOLS & SERVICES LLC
- Borre Loviknes
- E21 - EARTH DRILLING MINING

Trademarklast 30 trademarks