Patents
US 12765798 B2: Development of a simple, low-cost method of measuring ammonia concentration in exhaled breath for routine monitoring of chronic kidney disease
- Granted
- 2026-10-20
- Filed
- 2021-11-03 application 17517919
- Type
- Utility · 13 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An apparatus for measuring the ammonia concentration in exhaled breath and a method for measuring the ammonia concentration in exhaled breath. The apparatus comprises a sample collection portion, capable of capturing exhaled breath to control the volume of exhaled breath, a pressure gauge for the control of the flow rate of exhaled breath, a small diameter inner tube oriented in a perpendicular direction to the colorimetric sensor to focus the exhaled breath stream onto the central region of the sensor, and an analysis portion capable of receiving the exhaled breath from the sample collection portion. The analysis portion comprises a colorimetric sensor comprising an active component on a substrate. The colorimetric sensor changes color proportional to the ammonia concentration in the exhaled breath.
Source: PTBLXML, file of 2026-10-20 (ipgb20261020.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Clemson University Research Foundation 125 patents | US company or organization | Clemson, SC | CLEMSON UNIVERSITY RESEARCH FOUNDATION Nonprofit EXACT high confidence: identical full name and state | PTBLXML, file of 2026-10-20 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Riley Rapert | Clemson, SC | PTBLXML, file of 2026-10-20 | ||
| Robert A. Latour | Clemson, SC | PTBLXML, file of 2026-10-20 | ||
| George Chumanov | Clemson, SC | 4 | PTBLXML, file of 2026-10-20 | |
| Tyler George Harvey | Clemson, SC | PTBLXML, file of 2026-10-20 | ||
| Guzeliya Korneva | Clemson, SC | PTBLXML, file of 2026-10-20 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61B | Diagnosis; surgery; identification | A61B5/082 | PTBLXML, file of 2026-10-20 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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.