Oil-based drilling fluids for high pressure and high temperature drilling operations
US-11034880-B2 · Jun 15, 2021 · US
This page is not indexed by search engines while we improve data quality.
Hodder Michael Hayward patents
Hodder Michael Hayward is listed as an inventor on 20 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Hodder Michael Hayward |
| Total patents | 20 |
| First publication | Sep 21, 2017 |
| Latest publication | Jun 15, 2021 |
Notable patents
Publications ranked by popularity score, then publication date.
Layered double hydroxides for oil-based drilling fluids
US-10988659-B2 · Apr 27, 2021 · US
Oil-based drilling fluids for high pressure and high temperature drilling operations
US-10954425-B2 · Mar 23, 2021 · US
Thermally stable surfactants for oil based drilling fluids
US-10876039-B2 · Dec 29, 2020 · US
Layered double hydroxides for oil-based drilling fluids
US-10793762-B2 · Oct 6, 2020 · US
Oil-based drilling fluid compositions which include layered double hydroxides as rheology modifiers
US-10745606-B2 · Aug 18, 2020 · US
Oil-based drilling fluids for high pressure and high temperature drilling operations
US-2020255717-A1 · Aug 13, 2020 · US
Oil-based drilling fluids for high pressure and high temperature drilling operations
US-2020216742-A1 · Jul 9, 2020 · US
Oil-based drilling fluids for high pressure and high temperature drilling operations
US-10676658-B2 · Jun 9, 2020 · US
Oil-based drilling fluid compositions which include layered double hydroxides as rheology modifiers and amino amides as emulsifiers
US-10647903-B2 · May 12, 2020 · US
Recent patents
Latest publications not already listed above.
Oil-based drilling fluids for high pressure and high temperature drilling operations
US-10640696-B2 · May 5, 2020 · US
Layered double hydroxides for oil-based drilling fluids
US-2019055451-A1 · Feb 21, 2019 · US
Oil-based drilling fluids for high pressure and high temperature drilling operations
US-2019055448-A1 · Feb 21, 2019 · US
Oil-based drilling fluid compositions which include layered double hydroxides as rheology modifiers and amino amides as emulsifiers
US-2019055452-A1 · Feb 21, 2019 · US
Thermally stable surfactants for oil based drilling fluids
US-2019055460-A1 · Feb 21, 2019 · US
Oil-based drilling fluids for high pressure and high temperature drilling operations
US-2019055449-A1 · Feb 21, 2019 · US
Oil-based drilling fluid compositions which include layered double hydroxides as rheology modifiers
US-2019055453-A1 · Feb 21, 2019 · US
Layered double hydroxides for oil-based drilling fluids
US-2019055450-A1 · Feb 21, 2019 · US
Oil-based drilling fluids containing an alkaline-earth diamondoid compound as rheology modifier
US-10087355-B2 · Oct 2, 2018 · US
Oil-based drilling fluids containing an alkaline-earth diamondoid compound as rheology modifier
US-2017267910-A1 · Sep 21, 2017 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Univ Durham | 20 |
| Saudi Arabian Oil Co | 17 |
| M I Drilling Fluids Uk Ltd | 17 |
| Saudi Arabian Oil Co | 3 |
| M-I Drilling Fluids Uk Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C09K8/36 | 20 |
| C09K8/34 | 14 |
| E21B21/003 | 12 |
| C09K8/035 | 10 |
| C09K8/03 | 8 |