Patents
US 12601673 B2: Fixable viability dyes and their uses
- Granted
- 2026-04-14
- Filed
- 2019-07-12 application 17256523
- Type
- Utility · 10 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present invention provides compositions and methods useful for detecting live cells and dead cells in a cell sample. The methods rely on labelling compounds comprising a maleimide moiety linked to a label.
Source: PTBLXML, file of 2026-04-14 (ipgb20260414.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Beckman Coulter, Inc. 400 patents | US company or organization | Brea, CA | BECKMAN COULTER INC SEC filer EXACT medium confidence: identical full name, one of each nationally | PTBLXML, file of 2026-04-14 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Tewfik Miloud | Marseilles, FR | 2 | PTBLXML, file of 2026-04-14 | |
| Shankar Pattabhiraman | Chennai, IN | PTBLXML, file of 2026-04-14 | ||
| James Tung | Miami, FL | PTBLXML, file of 2026-04-14 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N15/14 | PTBLXML, file of 2026-04-14 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2021-01-22 | Assignment Assignment of assignor's interest | MILOUD, TEWFIK signed 2021-01-12 PATTABHIRAMAN, SHANKAR signed 2021-01-12 TUNG, JAMES signed 2021-01-12 | BECKMAN COULTER, INC. BREA, CA | 55005/699 | 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.