Marcus A. Smedley

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Barrier arrangement in wellhead assembly
- Patent number 12,084,937
- Issue date Sep 10, 2024
- Dril-Quip, Inc.
- Chris D. Bartlett
- E21 - EARTH DRILLING MINING
Information Patent Grant
Barrier arrangement in wellhead assembly
- Patent number 11,773,678
- Issue date Oct 3, 2023
- Dril-Quip, Inc.
- Chris D. Bartlett
- E21 - EARTH DRILLING MINING
Information Patent Grant
Barrier arrangement in wellhead assembly
- Patent number 11,542,778
- Issue date Jan 3, 2023
- Dril-Quip, Inc.
- Chris D. Bartlett
- E21 - EARTH DRILLING MINING
Information Patent Grant
Adjustable mandrel well casing hanger
- Patent number 5,176,218
- Issue date Jan 5, 1993
- FMC Corporation
- Roy E. Singer
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
BARRIER ARRANGEMENT IN WELLHEAD ASSEMBLY
- Publication number 20230392466
- Publication date Dec 7, 2023
- Dril-Quip, Inc.
- Chris D. Bartlett
- E21 - EARTH DRILLING MINING
Information Patent Application
BARRIER ARRANGEMENT IN WELLHEAD ASSEMBLY
- Publication number 20220389781
- Publication date Dec 8, 2022
- Dril-Quip, Inc.
- Chris D. Bartlett
- E21 - EARTH DRILLING MINING
Information Patent Application
BARRIER ARRANGEMENT IN WELLHEAD ASSEMBLY
- Publication number 20220018214
- Publication date Jan 20, 2022
- Dril-Quip, Inc.
- Chris D. Bartlett
- E21 - EARTH DRILLING MINING