Patents
US 10598562 B2: Gas detection systems and methods using measurement position uncertainty representations
- Granted
- 2020-03-24
- Filed
- 2015-11-21 application 14948287
- Type
- Utility · 27 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
In some embodiments, a natural gas leak detection system generates display content including indicators of remote and local potential leak source areas situated on a map of an area of a gas concentration measurement survey performed by a vehicle-borne device. The remote area may be shaped as a wedge extending upwind from an associated gas concentration measurement point. The local area graphically represents a potential local leak source area situated around the gas concentration measurement point, and having a boundary within a predetermined distance (e.g. 10 meters) of the gas concentration measurement point. The local area may be represented as a circle, ellipse, or other shape, and may include an area downwind from the measurement point. Size and/or shape parameters of the local area indicator may be determined according to survey vehicle speed and direction data, and/or wind speed and direction data characterizing the measurement point.
Source: PVGPATDIS, file of 2026-04-10 (ipg200324.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Picarro, Inc. 59 patents | US company or organization | Santa Clara, CA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| David Steele | San Francisco, CA | 14 | PVGPATDIS, file of 2026-04-10 | |
| Chris W. Rella | Sunnyvale, CA | 45 | PVGPATDIS, file of 2026-04-10 | |
| Sze Meng Tan | Santa Clara, CA | 41 | PVGPATDIS, file of 2026-04-10 | |
| Aaron Van Pelt | Hayward, CA | 5 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01M | Testing static or dynamic balance of machines or structures; testing of structures or apparatus, not otherwise provided for | G01M3/22 | PVGPATDIS, file of 2026-04-10 |
| F17D | Pipe-line systems; pipe-lines | F17D5/02 | PVGPATDIS, file of 2026-04-10 |
| G01C | Measuring distances, levels or bearings; surveying; navigation; gyroscopic instruments; photogrammetry or videogrammetry | G01C21/3694 | PVGPATDIS, file of 2026-04-10 |
| G01P | Measuring linear or angular speed, acceleration, deceleration, or shock; indicating presence, absence, or direction, of movement | G01P5/02 | PVGPATDIS, file of 2026-04-10 |
| F17C | Vessels for containing or storing compressed, liquefied or solidified gases; fixed-capacity gas-holders; filling vessels with, or discharging from vessels, compressed, liquefied, or solidified gases | F17C2250/0647 | 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 |
|---|---|---|---|---|---|
| 2021-06-02 | Release of security interest Release of security interest | SILICON VALLEY BANK signed 2021-05-27 | PICARRO, INC. SANTA CLARA, CA | 57252/674 | ECORSEXC, file of 2026-09-25 |
| 2019-04-18 | Correction Corrective assignment to correct the patent number previously recorded at reel: 042238 frame: 0948. assignor(s) hereby confirms the security interest. | PICARRO, INC. signed 2017-04-30 | SILICON VALLEY BANK SANTA CLARA, CA | 48943/540 | ECORSEXC, file of 2026-09-25 |
| 2017-05-04 | Security interest Security interest Security interest | PICARRO, INC. signed 2017-04-30 | SILICON VALLEY BANK SANTA CLARA, CA | 42238/948 | ECORSEXC, file of 2026-09-25 |
| 2015-12-02 | Assignment Assignment of assignor's interest | RELLA, CHRIS W. signed 2015-11-19 STEELE, DAVID signed 2015-11-19 TAN, SZE signed 2015-11-19 VAN PELT, AARON signed 2015-11-20 | PICARRO INC. SANTA CLARA, CA | 37190/942 | ECORSEXC, file of 2026-09-25 |
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.