Patents
US 12747636 B2: Earth-boring tools, hybrid earth-boring tools, and associated apparatus and methods
- Granted
- 2026-09-29
- Filed
- 2025-02-25 application 19062225
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An earth-boring tool includes a tool body with two or more blades, multiple cutting elements secured to the blades, and at least one roller cone positioned between the blades. The tool includes cutting structures extending from the roller cone, with at least two rows of cutting structures. One of the rows is underexposed and inset from the cutting profile defined by the cutting elements on the blades.
Source: PTBLXML, file of 2026-09-29 (ipgb20260929.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 2026-09-29 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Nathan S. Lockwood | Spring, TX | PTBLXML, file of 2026-09-29 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E21B | Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells | E21B10/14 | PTBLXML, file of 2026-09-29 |
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.