POSS-based hybrid supercritical CO2 thickener and preparation method thereof
US-12415880-B1 · Sep 16, 2025 · US
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Pu Wanfen patents
Pu Wanfen is listed as an inventor on 24 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Pu Wanfen |
| Total patents | 24 |
| First publication | Apr 22, 2021 |
| Latest publication | Sep 16, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Supercritical CO2 thickener for shale gas reservoir based on hollow mesoporous silica nanoparticles and preparation method thereof
US-12344796-B1 · Jul 1, 2025 · US
CO2 responsive core-shell multi-stage swelling microsphere and preparation method thereof
US-12146104-B1 · Nov 19, 2024 · US
Tight oil reservoir CO2 flooding multi-scale channeling control system and preparation method
US-11702585-B2 · Jul 18, 2023 · US
Tight oil reservoir co2 flooding multi-scale channeling control system and preparation method
US-2023146672-A1 · May 11, 2023 · US
Methods for preparing and applying a nano emulsifier
US-11618847-B2 · Apr 4, 2023 · US
Method for enhancing the recovery factor of heavy oil by in-situ oil-water emulsion with high phase inversion point
US-2023027607-A1 · Jan 26, 2023 · US
Method for enhancing the recovery factor of heavy oil by in-situ oil-water emulsion with high phase inversion point
US-11536123-B1 · Dec 27, 2022 · US
In-situ emulsification and viscosity increase system with high phase change point and application thereof in water-flooding oil reservoir
US-11473005-B2 · Oct 18, 2022 · US
High-temperature and high-pressure microscopic visual flowing device and experimental method
US-11428620-B2 · Aug 30, 2022 · US
Recent patents
Latest publications not already listed above.
High-temperature and high-pressure microscopic visual flowing device and experimental method
US-2022205896-A1 · Jun 30, 2022 · US
Lignocellulose nanofibril material, stable foam system based thereon, preparation method and application thereof
US-11339254-B2 · May 24, 2022 · US
Methods for preparing and applying a nano emulsifier
US-2022127517-A1 · Apr 28, 2022 · US
Preparation method of amphoteric two-dimensional nanosheet
US-11279621-B1 · Mar 22, 2022 · US
Insatiability emulsification and viscosity system with controlled viscosity and its application in water-driven reservoir
US-11268013-B2 · Mar 8, 2022 · US
Polymer-monodispersed nano-microspheres for deep profile control and flooding, and preparation method thereof
US-11225597-B2 · Jan 18, 2022 · US
Mine application method for in-situ nano-microspheres to increase crude oil recovery rate
US-11118102-B2 · Sep 14, 2021 · US
Lignocellulose nanofibril material, stable foam system based thereon, preparation method and application thereof
US-2021214509-A1 · Jul 15, 2021 · US
Polymer-monodispersed nano-microspheres for deep profile control and flooding, and preparation method thereof
US-2021189220-A1 · Jun 24, 2021 · US
Mine application method for in-situ nano-microspheres to increase crude oil recovery rate
US-2021189221-A1 · Jun 24, 2021 · US
In-situ emulsification and viscosity increase system with high phase change point and application thereof in water-flooding oil reservoir
US-2021163814-A1 · Jun 3, 2021 · US
Particulate profile control agent self-adaptive to size of formation pore throat and preparation method thereof
US-11015109-B2 · May 25, 2021 · US
Particulate profile control agent self-adaptive to size of formation pore throat and preparation method thereof
US-2021115317-A1 · Apr 22, 2021 · US
Insatiability emulsification and viscosity system with controlled viscosity and its application in water-driven reservoir
US-2021115324-A1 · Apr 22, 2021 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Univ Southwest Petroleum | 24 |
| Tianjin Univ Of Science And Technology | 2 |
| Tianfu Yongxing Laboratory | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C09K2208/10 | 13 |
| C09K8/588 | 13 |
| C09K8/584 | 7 |
| E21B43/16 | 6 |
| E21B43/20 | 6 |