Teledrill Inc
20Patents
12Active
20Granted
42Portfolio score
Filing activity: Jan 30, 1981 → Feb 28, 2018 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4348672A | Insulated drill collar gap sub assembly for a toroidal coupled telemetry system | Fixed Constructions | 103 | Expired |
| US4496174A | Insulated drill collar gap sub assembly for a toroidal coupled telemetry system | Mechanical Engineering; Lighting; Heating | 91 | Expired |
| US4468665A | Downhole digital power amplifier for a measurements-while-drilling telemetry system | Fixed Constructions | 79 | Expired |
| US4400858A | Heat sink/retainer clip for a downhole electronics package of a measurements-while-drilling telemetry system | Emerging Cross-Sectional Technologies | 48 | Expired |
| US4725837A | Toroidal coupled telemetry apparatus | Fixed Constructions | 47 | Expired |
| US4525715A | Toroidal coupled telemetry apparatus | Fixed Constructions | 44 | Expired |
| US7180826B2 | Measurement while drilling bi-directional pulser operating in a near laminar annular flow channel | Fixed Constructions | 43 | Expired |
| US4387372A | Point gap assembly for a toroidal coupled telemetry system | Fixed Constructions | 35 | Expired |
| US7958952B2 | Pulse rate of penetration enhancement device and method | Fixed Constructions | 15 | Active |
| US7836948B2 | Flow hydraulic amplification for a pulsing, fracturing, and drilling (PFD) device | Fixed Constructions | 12 | Active |
| US9013957B2 | Full flow pulser for measurement while drilling (MWD) device | Fixed Constructions | 9 | Active |
| US9133664B2 | Controlled pressure pulser for coiled tubing applications | Fixed Constructions | 5 | Active |
| US10001573B2 | Borehole flow modulator and inverted seismic source generating system | Fixed Constructions | 4 | Active |
| US9309762B2 | Controlled full flow pressure pulser for measurement while drilling (MWD) device | Fixed Constructions | 3 | Active |
| US9702204B2 | Controlled pressure pulser for coiled tubing measurement while drilling applications | Fixed Constructions | 2 | Active |
| US10633968B2 | Controlled pressure pulser for coiled tubing measurement while drilling applications | Fixed Constructions | 2 | Active |
| US9822635B2 | Controlled pressure pulser for coiled tubing applications | Fixed Constructions | 2 | Active |
| US10662767B2 | Controlled pressure pulser for coiled tubing applications | Fixed Constructions | 1 | Active |
| US10907421B2 | Drill string applications tool | Fixed Constructions | 1 | Active |
| US8720572B2 | High pressure fast response sealing system for flow modulating devices | Fixed Constructions | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.