H&D Electrics, LLC
21Patents
10Active
21Granted
38Portfolio score
Filing activity: Jul 9, 1990 → May 4, 2016 · 4 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6329924A | Wearable electric field detector | Physics | 46 | Expired |
| USD622956S1 | Wearable carrying case | General | 17 | Expired |
| USD664457S1 | Voltage detector | General | 17 | Active |
| US8212549B2 | Ammeter with improved current sensing | Physics | 15 | Active |
| US6998832B1 | High-voltage indicating apparatus and method | Physics | 14 | Expired |
| US5130642A | Hanging ammeter with removable battery cartridge | Physics | 12 | Expired |
| US5017739A | Jacket for cable connector | Electricity | 12 | Expired |
| US9265331B1 | Wearable carrying case | Physics | 12 | Active |
| US9494632B1 | High-voltage detector monitoring system | Physics | 11 | Active |
| US6130530A | Tester for power transformers and capacitors | Physics | 11 | Expired |
| US7746051B1 | Voltmeter with dual displays | Physics | 10 | Active |
| US5291124A | Tester for high voltage measuring apparatus | Physics | 10 | Expired |
| US6323638A | High-resistance probe and voltage detector incorporating same | Physics | 6 | Expired |
| USD510882S1 | Digital voltage indicator | General | 5 | Expired |
| USD439537S | Wearable electric field presence detector | General | 5 | Expired |
| USD792252S1 | Voltage detector | General | 5 | Active |
| US9494623B2 | High-voltage detector monitoring system | Physics | 4 | Active |
| US6124714A | Lightning and surge arrester test apparatus and method | Physics | 4 | Expired |
| USD737160S1 | Digital ammeter | General | 1 | Active |
| US9960648B2 | Adjustable high torque axial gap electric motor | Electricity | 1 | Active |
| US9658265B2 | High voltage digital voltmeter and wireless phaser | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.