Patents
US 12209217 B1: Carbon dioxide viscosification
- Granted
- 2025-01-28
- Filed
- 2024-04-19 application 18640037
- Type
- Utility · 13 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Provided is a composition including fluid carbon dioxide and a polyolefin thickener, wherein the polyolefin thickener includes a polymer of one or more olefin monomers having 8 or more carbon atoms, wherein at least 5 mol percent of the olefin monomers have 12 or more carbon atoms. Associated methods are also provided.
Source: PVGPATDIS, file of 2026-04-10 (ipg250128.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| The Lubrizol Corporation 368 patents | US company or organization | Wickliffe, OH | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Binbin Guo | Sagamore Hills, OH | 8 | PVGPATDIS, file of 2026-04-10 | |
| Abbas Firoozabadi | Los Altos, CA | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C09K | Materials for miscellaneous applications, not provided for elsewhere | C09K8/594 | PVGPATDIS, file of 2026-04-10 |
| E21B | Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells | E21B41/0064 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-04-19 | Assignment Assignment of assignor's interest | GUO, BINBIN signed 2024-04-17 FIROOZABADI, ABBAS signed 2024-04-18 | THE LUBRIZOL CORPORATION WICKLIFFE, OH | 67159/69 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.