Merlin Technology Inc.
285Patents
224Active
285Granted
54Portfolio score
Filing activity: Jul 3, 2001 → Mar 29, 2024 · 51 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6723375B2 | Portable locator including a ground marking arrangement | Fixed Constructions | 107 | Expired |
| US6655464B2 | Auto-extending/retracting electrically isolated conductors in a segmented drill string | Fixed Constructions | 73 | Expired |
| US6737867B2 | Locating arrangement and method using boring tool and cable locating signals | Physics | 61 | Expired |
| US6756783B2 | Multi-frequency boring tool locating system and method | Physics | 58 | Expired |
| US6868921B2 | Boring tool tracking fundamentally based on drill string length, pitch and roll | Physics | 52 | Expired |
| US6845822B2 | Auto-extending/retracting electrically isolated conductors in a segmented drill string | Electricity | 39 | Expired |
| US7960973B2 | Tracking positions of personnel, vehicles, and inanimate objects | Physics | 38 | Active |
| US9540879B2 | Directional drilling target steering apparatus and method | Fixed Constructions | 37 | Active |
| US7150329B2 | Auto-extending/retracting electrically isolated conductors in a segmented drill string | Electricity | 36 | Expired |
| US7425829B2 | Tracking positions of personnel, vehicles, and inanimate objects | Physics | 34 | Expired |
| US8729901B2 | Measurement device and associated method for use in frequency selection for inground transmission | Physics | 34 | Active |
| US8695727B2 | Drill string adapter and method for inground signal coupling | Fixed Constructions | 33 | Active |
| US7619824B2 | Variable optical arrays and variable manufacturing methods | Physics | 32 | Active |
| US7028779B2 | Auto-extending/retracting electrically isolated conductors in a segmented drill string | Electricity | 27 | Expired |
| US9274243B2 | Advanced drill string communication system, components and methods | Physics | 26 | Active |
| US7898494B2 | Locating technique and apparatus using an approximated dipole signal | Electricity | 24 | Active |
| US6668944B2 | Path mapping in underground boring tool applications | Physics | 23 | Expired |
| US7239445B2 | Projection-receiving surface that functions in ambient light | Physics | 23 | Expired |
| US7165632B2 | Boring tool tracking fundamentally based on drill string length, pitch and roll | Physics | 22 | Expired |
| US7926589B2 | Boring tool control using remote locator | Fixed Constructions | 22 | Active |
| US6854535B1 | Bore location system and method of calibration | Fixed Constructions | 20 | Expired |
| US6927741B2 | Locating technique and apparatus using an approximated dipole signal | Electricity | 20 | Expired |
| US7225885B2 | Boring tool control using remote locator | Fixed Constructions | 19 | Expired |
| US7268950B2 | Variable optical arrays and variable manufacturing methods | Physics | 19 | Expired |
| US8360369B2 | Emergency collective actuator and method for a helicopter | Performing Operations; Transporting | 19 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.