Wear bushing deployment and retrieval tool for subsea wellhead
US-11060383-B2 · Jul 13, 2021 · US
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Twardowski Eric M patents
Twardowski Eric M is listed as an inventor on 17 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Twardowski Eric M |
| Total patents | 17 |
| First publication | Mar 5, 2015 |
| Latest publication | Jul 13, 2021 |
Notable patents
Publications ranked by popularity score, then publication date.
Wear Bushing Deployment and Retrieval Tool for Subsea Wellhead
US-2020318460-A1 · Oct 8, 2020 · US
Wear bushing deployment and retrieval tool for subsea wellhead
US-10662743-B2 · May 26, 2020 · US
Method and apparatus for sealing tubulars
US-10590733-B2 · Mar 17, 2020 · US
Wear Bushing Deployment and Retrieval Tool for Subsea Wellhead
US-2019242217-A1 · Aug 8, 2019 · US
Ball seat apparatus and method
US-10161217-B2 · Dec 25, 2018 · US
Method and apparatus for sealing tubulars
US-2018038194-A1 · Feb 8, 2018 · US
Method and apparatus for sealing tubulars
US-9745821-B2 · Aug 29, 2017 · US
Subsea drilling with casing
US-9719303-B2 · Aug 1, 2017 · US
Subsea casing drilling system
US-2017198526-A1 · Jul 13, 2017 · US
Recent patents
Latest publications not already listed above.
Subsea casing drilling system
US-2017051561-A1 · Feb 23, 2017 · US
Tubular coupling device
US-9500044-B2 · Nov 22, 2016 · US
Subsea drilling with casing
US-9493989-B2 · Nov 15, 2016 · US
Subsea casing drilling system
US-9488004-B2 · Nov 8, 2016 · US
Earth removal member with features for facilitating drill-through
US-9297210-B2 · Mar 29, 2016 · US
Subsea drilling with casing
US-2015184461-A1 · Jul 2, 2015 · US
Subsea drilling with casing
US-2015060078-A1 · Mar 5, 2015 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Weatherford Tech Holdings Llc | 14 |
| Weatherford Lamb | 3 |
| Weatherford Tech Holding Llc | 1 |
| Twardowski Eric M | 1 |
| Weatherford Technology Holdings Llc | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| E21B7/208 | 10 |
| E21B33/14 | 7 |
| E21B7/20 | 6 |
| E21B21/103 | 6 |
| E21B17/12 | 4 |