Patents
US 9140657 B2: Detection of J-coupling using atomic magnetometer
- Granted
- 2015-09-22
- Filed
- 2010-04-13 application 13264376
- Type
- Utility · 11 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An embodiment of a method of detecting a J-coupling includes providing a polarized analyte adjacent to a vapor cell of an atomic magnetometer; and measuring one or more J-coupling parameters using the atomic magnetometer. According to an embodiment, measuring the one or more J-coupling parameters includes detecting a magnetic field created by the polarized analyte as the magnetic field evolves under a J-coupling interaction.
Source: PVGPATDIS, file of 2026-04-10 (ipg150922.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| THE REGENTS OF THE UNIVERSITY OF CALIFORNIA 8,781 patents | US company or organization | Oakland, CA | REGENTS OF THE UNIVERSITY OF CALIFORNIA State business registration FUZZY medium confidence: same name (legal endings aside) and state | PVGPATDIS, file of 2026-04-10 |
| The United States of America, as Represented by the Secretary of Commerce National Institute of Standards and Technology 48 patents | US federal government | Washington, DC | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Micah Ledbetter | Oakland, CA | 37 | PVGPATDIS, file of 2026-04-10 | |
| Charles W. Crawford | Albuquerque, NM | 1 | PVGPATDIS, file of 2026-04-10 | |
| David Wemmer | Berkeley, CA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Alexander Pines | Berkeley, CA | 12 | PVGPATDIS, file of 2026-04-10 | |
| Svenja Knappe | Boulder, CO | 9 | PVGPATDIS, file of 2026-04-10 | |
| John Kitching | Boulder, CO | 3 | PVGPATDIS, file of 2026-04-10 | |
| Dmitry Budker | Corona, CA | 10 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N24/08 | PVGPATDIS, file of 2026-04-10 |
| G01R | Measuring electric variables; measuring magnetic variables | G01R33/26 | 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 |
|---|---|---|---|---|---|
| 2022-04-28 | Government interest Confirmatory license | UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB signed 2011-10-26 | UNITED STATES DEPARTMENT OF ENERGY WASHINGTON, DC | 59765/504 | ECORSEXC, file of 2026-09-25 |
| 2015-04-15 | Assignment Assignment of assignor's interest | KITCHING, JOHN signed 2015-04-03 | GOVERNMENT OF THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF COMMERCE, THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY GAITHERSBURG, MD | 35425/488 | ECORSEXC, file of 2026-09-25 |
| 2012-03-30 | Assignment Assignment of assignor's interest | BUDKER, DMITRY signed 2011-10-20 LEDBETTER, MICAH P. signed 2011-10-20 WEMMER, DAVID E. signed 2012-01-17 CRAWFORD, CHARLES W. signed 2012-03-09 PINES, ALEXANDER signed 2012-03-28 | THE REGENTS OF THE UNIVERSITY OF CALIFORNIA OAKLAND, CA | 27964/312 | 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.