Patents
US 9328284 B2: Oil thinning compositions and retrieval methods
- Granted
- 2016-05-03
- Filed
- 2012-08-30 application 13599842
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Compositions of plant oil-based biodegradable crude oil thinning fluids are described having a performance especially suitable to reducing crude oil viscosity in extraction and retrieval operations. A method to recover oil from an oil well is described, comprising the steps of: a) providing a formulation comprising one or more terpenoid compounds, soy methyl esters, and glycol ether esters; b) introducing a first portion of the formulation into an oil well; and c) recovering a mixture from the oil well, where the mixture comprises at least a portion of the formulation together with oil from the oil well.
Source: PVGPATDIS, file of 2026-04-10 (ipg160503.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| BIOSPAN TECHNOLOGIES, INC. 6 patents | US company or organization | Ballwin, MO | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Sheldon R. Chesky | Chesterfield, MO | 6 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C09K | Materials for miscellaneous applications, not provided for elsewhere | C09K8/82 | 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 | E21B43/16 | 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 |
|---|---|---|---|---|---|
| 2012-09-19 | Assignment Assignment of assignor's interest | CHESKY, SHELDON R. signed 2012-09-18 | BIOSPAN TECHNOLOGIES, INC. BALLWIN, MO | 28987/117 | 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.