Patents
US 10871066 B1: Molecular tracers and modified proppants for monitoring underground fluid flows
- Granted
- 2020-12-22
- Filed
- 2018-03-27 application 15937650
- Type
- Utility · 9 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present invention relates to modified proppants and methods of using the modified proppants that use metal ligand tracers to characterize subterranean fluid flow. The metal and ligands are best chosen to be a strongly-coordinating, chelating ligand with a functional group for the chosen flow environment.
Source: PVGPATDIS, file of 2026-04-10 (ipg201222.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| National Technology & Engineering Solutions of Sandia, LLC 1,085 patents | US company or organization | Albuquerque, NM | PVGPATDIS, file of 2026-04-10 | |
| STC.UNM 475 patents | US company or organization | Albuquerque, NM | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Richard A. Kemp | Albuquerque, NM | 7 | PVGPATDIS, file of 2026-04-10 | |
| Timothy J. Boyle | Albuquerque, NM | 68 | 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 | E21B47/11 | PVGPATDIS, file of 2026-04-10 |
| C09B | Organic dyes or closely-related compounds for producing dyes ; , e.g. pigments; mordants; lakes | C09B47/00 | PVGPATDIS, file of 2026-04-10 |
| C07D | Heterocyclic compounds | C07D487/22 | 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 |
|---|---|---|---|---|---|
| 2018-06-13 | Assignment Assignment of assignor's interest | BOYLE, TIMOTHY J. signed 2018-06-11 | NATIONAL TECHNOLOGY & ENGINEERING SOLUTIONS OF SANDIA, LLC ALBUQUERQUE, NM | 46352/937 | ECORSEXC, file of 2026-09-25 |
| 2018-06-08 | Government interest Confirmatory license | NATIONAL TECHNOLOGY & ENGINEERING SOLUTIONS OF SANDIA, LLC signed 2018-06-05 | U.S. DEPARTMENT OF ENERGY WASHINGTON, DC | 46023/944 | 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.