Patents
US 12630519 B2: Methods and systems for measuring ascorbic acid
- Granted
- 2026-05-19
- Filed
- 2019-10-02 application 17273445
- Type
- Utility · 14 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Disclosed are methods and systems using liquid chromatography/tandem mass spectrometry (LC-MS/MS and 2D-LC-MS/MS) for the analysis of ascorbic acid in biological samples.
Source: PTBLXML, file of 2026-05-19 (ipgb20260519.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Laboratory Corporation of America Holdings 128 patents | US company or organization | Burlington, NC | PTBLXML, file of 2026-05-19 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Russell Phillip Grant | Chapel Hill, NC | PTBLXML, file of 2026-05-19 | ||
| William Slade | Burlington, NC | PTBLXML, file of 2026-05-19 | ||
| Erin Fagan | Greensboro, NC | PTBLXML, file of 2026-05-19 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C07D | Heterocyclic compounds | C07D307/60 | PTBLXML, file of 2026-05-19 |
| B01J | Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus | B01J39/16 | PTBLXML, file of 2026-05-19 |
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N33/82 | PTBLXML, file of 2026-05-19 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2026-02-25 | Assignment Assignment of assignor's interest | GRANT, RUSSELL PHILLIP signed 2021-04-02 SLADE, WILLIAM signed 2021-04-02 FAGAN, ERIN signed 2021-04-05 | LABORATORY CORPORATION OF AMERICA HOLDINGS BURLINGTON, NC | 73892/675 | 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.