Viscoelastic surfactants for acid diversion in downhole operations
US-12590522-B2 · Mar 31, 2026 · US
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Ullah Nisar patents
Ullah Nisar is listed as an inventor on 50 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Ullah Nisar |
| Total patents | 50 |
| First publication | Apr 2, 2015 |
| Latest publication | Mar 31, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Treatment of subterranean formations
US-12139660-B2 · Nov 12, 2024 · US
Viscoelastic surfactants for acid diversion in downhole operations
US-2024368971-A1 · Nov 7, 2024 · US
Viscoelastic surfactants for acid diversion in downhole operations
US-12071838-B2 · Aug 27, 2024 · US
Methods and materials for wellbore fluid diversion using visco-elastic surfactants
US-2024132773-A1 · Apr 25, 2024 · US
Viscoelastic surfactants for acid diversion in downhole operations
US-2024133279-A1 · Apr 25, 2024 · US
Methods and materials for wellbore fluid diversion using visco-elastic surfactants
US-11959017-B1 · Apr 16, 2024 · US
Methods and compositions of synthetic quadripolymer based diversion fluids
US-2024067861-A1 · Feb 29, 2024 · US
Energy storage device and supercapacitor
US-11887782-B2 · Jan 30, 2024 · US
Fracturing fluids based on viscoelastic surfactants
US-11746279-B2 · Sep 5, 2023 · US
Recent patents
Latest publications not already listed above.
Energy storage device and supercapacitor
US-2023274892-A1 · Aug 31, 2023 · US
Methods and compositions of piperazine-based viscoelastic surfactants as diversion agents
US-11739255-B2 · Aug 29, 2023 · US
Treatment of Subterranean Formations
US-2023265334-A1 · Aug 24, 2023 · US
Piperazine-based viscoelastic surfactants for hydraulic fracturing applications
US-11713412-B2 · Aug 1, 2023 · US
Treatment of subterranean formations
US-11685855-B2 · Jun 27, 2023 · US
Nanocomposite supercapacitors and method of preparation thereof
US-11688564-B1 · Jun 27, 2023 · US
Fracturing fluids based on viscoelastic surfactants
US-2023159816-A1 · May 25, 2023 · US
Piperazine-based viscoelastic surfactants for hydraulic fracturing applications
US-2023151265-A1 · May 18, 2023 · US
Methods and compositions of piperazine-based viscoelastic surfactants as diversion agents
US-2023151263-A1 · May 18, 2023 · US
Methods and compositions of using viscoelastic surfactants as diversion agents
US-2023151264-A1 · May 18, 2023 · US
Methods and compositions of using viscoelastic surfactants as diversion agents
US-11643590-B1 · May 9, 2023 · US
Treatment of Subterranean Formations
US-2023129905-A1 · Apr 27, 2023 · US
Method for removing a pollutant from aqueous solution with a crosslinked polymer
US-11618006-B2 · Apr 4, 2023 · US
Method for removing a pollutant from aqueous solution with a crosslinked polymer
US-2022305459-A1 · Sep 29, 2022 · US
Crosslinked resin, synthesis thereof, and use for removing organic dyes
US-11351520-B2 · Jun 7, 2022 · US
Methods and compositions using a combination of zwitterionic surfactants and gemini surfactants as diversion agents
US-11236264-B2 · Feb 1, 2022 · US
Methods and compositions of using viscoelastic surfactants as diversion agents
US-11203712-B1 · Dec 21, 2021 · US
Methods and compositions using a combination of zwitterionic surfactants and gemini surfactants as diversion agents
US-2021380871-A1 · Dec 9, 2021 · US
Methods and compositions for downhole diversion of well treatment fluid
US-2021380867-A1 · Dec 9, 2021 · US
Methods and compositions of using viscoelastic surfactants as diversion agents
US-2021380873-A1 · Dec 9, 2021 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Univ King Fahd Pet & Minerals | 50 |
| Saudi Arabian Oil Co | 24 |
| King Abdulaziz City Sci & Tech | 7 |
| King Abdulaziz City for Science Technology | 1 |
| Saudi Arabian Oilcompany | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C09K8/602 | 19 |
| C09K8/584 | 13 |
| C09K2208/30 | 10 |
| C08G2261/312 | 8 |
| C09K8/68 | 8 |