Patents
US 12460511 B2: Drill stem greasing device and method
- Granted
- 2025-11-04
- Filed
- 2024-05-13 application 18662048
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A drill stem grease injector for a directional drill and associated methods are disclosed. Example drill stem grease injectors include a piston within an injection chamber, and a grease port in a side of the injection chamber, wherein grease port is configured to actuate before motion of the piston during an injection operation. Drill stem grease systems shown provide refill capabilities that reduce or eliminate a user's need to touch grease.
Source: PVGPATDIS, file of 2026-04-10 (ipg251104.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| TT Technologies, Inc. 105 patents | US company or organization | Aurora, IL | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| John A. Olander | Clayton, WI | 25 | PVGPATDIS, file of 2026-04-10 |
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 | E21B41/00 | 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 |
|---|---|---|---|---|---|
| 2024-05-13 | Assignment Assignment of assignor's interest | OLANDER, JOHN A. signed 2021-08-18 | TT TECHNOLOGIES, INC. AURORA, IL | 67389/667 | 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.