Patents
US 11996280 B2: Methods and systems for detecting aerosol particles without using complex organic MALDI matrices
- Granted
- 2024-05-28
- Filed
- 2020-06-27 application 17623598
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Disclosed are systems are methods for identifying the composition of single aerosol particles, particularly that of bioaerosol particles, without pre-treatment using complex organic MALDI matrices. A continuous timing laser may be used to index aerosol particles, measure particle properties, and trigger a pulse ionization laser. Ionized fragments and optionally photons associated with each particle producing by the ionization laser may be analyzed using one or more detectors including a TOF-MS detector and an optical detector. The laser pulse may comprise a simultaneous IR and UV laser pulse when fragments comprise predominantly of UV chromophores. Unique spectral data associated with each indexed particle from each detector may be compiled using data fusion to generate compiled spectral data. Machine learning methods may be used to improve the prediction of composition over time.
Source: PVGPATDIS, file of 2026-04-10 (ipg240528.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Zeteo Tech, Inc. 21 patents | US company or organization | Sykesville, MD | Zeteo Tech, Inc. Form D issuer EXACT high confidence: identical full name and state ZETEO TECH, INC. DBA SPECTARA (FKA ZETEO TECH, INC.) Federal lobbying client FUZZY medium confidence: same name (legal endings aside) and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Michael McLoughlin | Sykesville, MD | 17 | PVGPATDIS, file of 2026-04-10 | |
| Wayne A. Bryden | Sykesville, MD | 17 | PVGPATDIS, file of 2026-04-10 | |
| Charles J. Call | Sykesville, MD | 11 | PVGPATDIS, file of 2026-04-10 | |
| Dapeng Chen | Sykesville, MD | 60 | 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 | G01N27/628 | PVGPATDIS, file of 2026-04-10 |
| H01J | Electric discharge tubes or discharge lamps | H01J49/164 | 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 |
|---|---|---|---|---|---|
| 2026-04-08 | Security interest Security interest Security interest | ZETEO TECH, INC. signed 2026-04-07 | SILICON VALLEY BANK, A DIVISION OF FIRST-CITIZENS BANK & TRUST COMPANY PASADENA, CA | 76302/225 | PASDL, file of 2026-10-10 |
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.