Patents
US 11131628 B1: Spectroscopic methods and systems for isotopic analysis
- Granted
- 2021-09-28
- Filed
- 2020-05-12 application 16872533
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Disclosed are spectroscopy systems and methods. A spectroscopy system can include a reference cell and a multi-pass sample cell. The reference arm can include an etalon and a reference cavity containing a reference gas. A system can include a fractional sublimation cold trap. Detectors of the reference and sample arms can detect both intensity and absorption spectra of impinging beams. A frequency calibration based on a reference absorption spectra can be used to analyze a sample absorption spectrum. The analysis can provide information regarding an absorption band shift of the sample absorption spectrum, said shift being related to the isotope concentration of the sample.
Source: PVGPATDIS, file of 2026-04-10 (ipg210928.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Savannah River Nuclear Solutions, LLC 156 patents | US company or organization | Aiken, SC | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Patrick E. O'Rourke | Martinez, GA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Kimberly Alicia Strange Fessler | Aiken, SC | 2 | PVGPATDIS, file of 2026-04-10 | |
| Nicholas F. Deroller | Aiken, SC | 2 | PVGPATDIS, file of 2026-04-10 | |
| Steven M. Serkiz | Aiken, SC | 8 | 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 | G01N21/39 | 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 |
|---|---|---|---|---|---|
| 2022-12-16 | Assignment Assignment of assignor's interest | SAVANNAH RIVER NUCLEAR SOLUTIONS, LLC signed 2022-10-14 | BATTELLE SAVANNAH RIVER ALLIANCE, LLC AIKEN, SC | 62122/826 | ECORSEXC, file of 2026-09-25 |
| 2020-07-20 | Government interest Confirmatory license | SAVANNAH RIVER NUCLEAR SOLUTIONS, LLC signed 2020-07-15 | U.S. DEPARTMENT OF ENERGY WASHINGTON, DC | 53249/647 | ECORSEXC, file of 2026-09-25 |
| 2020-05-12 | Assignment Assignment of assignor's interest | DEROLLER, NICHOLAS F. signed 2020-05-06 STRANGE FESSLER, KIMBERLY ALICIA signed 2020-05-06 O'ROURKE, PATRICK E. signed 2020-05-07 SERKIZ, STEVEN M. signed 2020-05-08 | SAVANNAH RIVER NUCLEAR SOLUTIONS, LLC AIKEN, SC | 52634/723 | 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.