Patents
US 11530605 B2: Horizontal directional drilling crossbore detector
- Granted
- 2022-12-20
- Filed
- 2016-03-14 application 15068793
- Type
- Utility · 25 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A crossbore detection system. The system is located in a downhole tool proximate a drill bit. The system comprises circuitry sensitive to a subsurface environment and a sensor that detects changes in the circuitry. The sensor detects changes in the circuitry that indicates that the drill bit has struck an underground pipe. The sensor may detect a series of electromagnetic signals indicative of the strike or may detect changes to an impedance bridge at a capacitive sensor.
Source: PVGPATDIS, file of 2026-04-10 (ipg221220.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| The Charles Machines Works, Inc. 255 patents | US company or organization | Perry, OK | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Floyd R. Gunsaulis | Perry, OK | 18 | PVGPATDIS, file of 2026-04-10 | |
| Richard F. Sharp | Perry, OK | 9 | PVGPATDIS, file of 2026-04-10 | |
| Arun Prakash Jaganathan | Ruston, LA | 9 | PVGPATDIS, file of 2026-04-10 | |
| David Edward Hall | Ruston, LA | 1 | PVGPATDIS, file of 2026-04-10 | |
| Neven Simicevic | Ruston, LA | 6 | 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 | E21B47/09 | 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 |
|---|---|---|---|---|---|
| 2016-07-07 | Assignment Assignment of assignor's interest | HALL, DAVID EDWARD signed 2016-04-07 JAGANATHAN, ARUN PRAKASH signed 2016-04-07 SIMICEVIC, NEVEN signed 2016-04-07 | LOUISIANA TECH RESEARCH CORPORATION RUSTON, LA | 39097/23 | ECORSEXC, file of 2026-09-25 |
| 2016-07-07 | Assignment Assignment of assignor's interest | SHARP, RICHARD F. signed 2016-06-30 GUNSAULIS, FLOYD R. signed 2016-07-05 | THE CHARLES MACHINE WORKS, INC. PERRY, OK | 39096/859 | 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.