Patents
US 12712249 B2: Apparatus and method for wireless communication through well casing annulus
- Granted
- 2026-08-18
- Filed
- 2024-07-01 application 18760707
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An antenna assembly includes a first antenna fastened to a first member disposed in a second member, where the first member is spaced apart from the second member in a radial direction. The antenna assembly includes a second antenna fastened to the second member. A direction of an antenna moment associated with the first antenna or the second antenna intersects an axial direction of the first member, an axial direction of the second member, or both.
Source: PTBLXML, file of 2026-08-18 (ipgb20260818.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Baker Hughes Oilfield Operations LLC 922 patents | US company or organization | Houston, TX | PTBLXML, file of 2026-08-18 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Jun Zhang | Katy, TX | PTBLXML, file of 2026-08-18 | ||
| Kamalesh Chatterjee | Tomball, TX | 5 | PTBLXML, file of 2026-08-18 | |
| Stewart Brazil | Edmond, OK | PTBLXML, file of 2026-08-18 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H01Q | Antennas, i.e. radio aerials | H01Q1/04 | PTBLXML, file of 2026-08-18 |
| E21B | Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells | E21B47/13 | PTBLXML, file of 2026-08-18 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-07-03 | Assignment Assignment of assignor's interest | ZHANG, JUN signed 2024-05-31 CHATTERJEE, KAMALESH signed 2024-06-20 BRAZIL, STEWART signed 2024-06-27 | BAKER HUGHES OILFIELD OPERATIONS LLC HOUSTON, TX | 67906/76 | PASDL, file of 2026-08-13 |
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.