Patents
US 9169717 B2: High uptake sulfur solvent systems and methods for making and using same
- Granted
- 2015-10-27
- Filed
- 2012-11-06 application 13669787
- Type
- Utility · 27 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Compositions for chemically removing sulfur deposits from reservoir formations, production tubing, flow lines, and other production equipment due to the production of sour gas and/or oil including reaction products of diamines and aldehydes at a mole ratio between about 1:1 and about 1:6, and methods for making and using same.
Source: PVGPATDIS, file of 2026-04-10 (ipg151027.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Lubrizol oilfield Solutions, Inc. 6 patents | US company or organization | Wickliffe, OH | LUBRIZOL OILFIELD SOLUTIONS, INC. State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Simon John Michael Levey | Edmonton, CA | 5 | PVGPATDIS, file of 2026-04-10 | |
| Clayton S. Smith | Edmonton, CA | 9 | PVGPATDIS, file of 2026-04-10 | |
| Pulikesi Murugan | Edmonton, CA | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E21B | Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells | E21B37/06 | PVGPATDIS, file of 2026-04-10 |
| C08G | Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds | C08G12/06 | PVGPATDIS, file of 2026-04-10 |
| C11D | Detergent compositions; use of single substances as detergents; soap or soap-making; resin soaps; recovery of glycerol | C11D7/3209 | 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 |
|---|---|---|---|---|---|
| 2018-02-21 | Assignment Assignment of assignor's interest | LUBRIZOL OILFIELD SOLUTIONS, INC. signed 2017-12-11 | THE LUBRIZOL CORPORATION WICKLIFFE, OH | 44984/586 | ECORSEXC, file of 2026-09-25 |
| 2014-12-04 | Assignment Assignment of assignor's interest | WEATHERFORD/LAMB, INC. signed 2014-09-01 | WEATHERFORD TECHNOLOGY HOLDINGS, LLC HOUSTON, TX | 34526/272 | PASDL, file of 2026-10-15 |
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.