Patents
US 12687519 B2: Dual-gas metering system and method
- Granted
- 2026-07-21
- Filed
- 2023-11-28 application 18521522
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A dual-gas metering system and method is described herein, wherein percentages of two types of gas in a gas flow are determined. The system uses two speed of sound measurements, and calculates a percentage of hydrogen gas within a mixture of natural gas and hydrogen gas. In a further example, a first speed of sound within a single type of gas (e.g., natural gas) is obtained. This measurement may be obtained from a remote device operating in a region of the gas system upstream of a location wherein a second type of gas (e.g., hydrogen gas) is introduced. A second speed of sound within a dual-gas mixture is measured. A hydrogen concentration value is calculated based at least in part on the first speed of sound and the second speed of sound, such as by using a ratio of the two speeds of sound and a lookup table.
Source: PTBLXML, file of 2026-07-21 (ipgb20260721.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Itron, Inc. 476 patents | US company or organization | Liberty Lake, WA | ITRON, INC. Federal lobbying client EXACT high confidence: identical full name and state ITRON, INC. SEC filer EXACT medium confidence: identical full name, one of each nationally | PTBLXML, file of 2026-07-21 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Pierre-Olivier Jandaud | Macon, FR | PTBLXML, file of 2026-07-21 | ||
| Karsten Hugler | Woerth, DE | 2 | PTBLXML, file of 2026-07-21 | |
| Thibaut Meurisse | Macon, FR | PTBLXML, file of 2026-07-21 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N29/024 | PTBLXML, file of 2026-07-21 |
| F17D | Pipe-line systems; pipe-lines | F17D5/005 | PTBLXML, file of 2026-07-21 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2026-05-15 | Assignment Assignment of assignor's interest | JANDAUD, PIERRE-OLIVIER signed 2023-11-28 HUGLER, KARSTEN signed 2023-11-28 MEURISSE, THIBAUT signed 2023-11-28 | ITRON, INC. LIBERTY LAKE, WA | 74667/780 | PASDL, file of 2026-08-13 |
| 2025-09-15 | Security interest Security interest Security interest | ITRON, INC. signed 2025-09-12 | WELLS FARGO BANK, NATIONAL ASSOCIATION CHARLOTTE, NC | 72870/873 | 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.