Technology Research, LLC
34Patents
17Active
34Granted
48Portfolio score
Filing activity: Jun 13, 1983 → Feb 6, 2017 · 7 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4931894A | Ground fault current interrupter circuit with arcing protection | Electricity | 101 | Expired |
| US5229730A | Resettable circuit interrupter | Electricity | 62 | Expired |
| US4567456A | Resettable circuit closing device | Electricity | 51 | Expired |
| US6381113B1 | Leakage current protection device adapted to a wide variety of domestic and international applications | Electricity | 47 | Expired |
| US6292337A | Electrical system with arc protection | Electricity | 45 | Expired |
| US4598331A | Ground fault current interrupter circuit with open neutral and ground lead protection | Electricity | 45 | Expired |
| US8436602B2 | Voltage compensation circuit | Electricity | 30 | Active |
| US4799307A | Anchor apparatus for a tendon in prestressed concrete slab | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6550471B2 | Heated clothing for use in cold weather and cold climate regions | Human Necessities | 26 | Expired |
| US8134820B1 | Contactor control circuit | Electricity | 26 | Active |
| US6829123B2 | Device safety system and method | Electricity | 25 | Expired |
| US6525914B1 | Protection system for devices connected to an alternating current electrical power supply | Electricity | 25 | Expired |
| USD601098S1 | Closure for electrical cord | General | 14 | Expired |
| US7423854B2 | Interruption circuit with improved shield | Electricity | 14 | Active |
| US6119526A | Method and apparatus for detecting tendon failures within prestressed concrete | Physics | 14 | Expired |
| US7138729B2 | Electrical power control system | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7751161B2 | Leakage current detection and interruption circuit | Electricity | 13 | Expired |
| US8325454B2 | Over heating detection and interrupter circuit | Electricity | 13 | Active |
| US8659857B2 | Leakage current detection and interruption circuit powered by leakage current | Electricity | 10 | Active |
| US8128434B1 | Electrical adapter with fuse | Electricity | 9 | Active |
| US8641443B1 | Electrical power connector with handle | Electricity | 9 | Active |
| US4928451A | Anchor apparatus for a tendon in prestressed concrete slab | Fixed Constructions | 8 | Expired |
| US9564719B1 | Elevated temperature detection and interrupter circuit for power cable | Electricity | 8 | Active |
| USD576110S1 | Closure for an electrical cord | General | 5 | Expired |
| US7623329B2 | Leakage current detection and interruption circuit with improved shield | Electricity | 5 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.