Defond Componets Limited
63Patents
48Active
63Granted
51Portfolio score
Filing activity: May 22, 2003 → Nov 22, 2021 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6749028B1 | Power tool trigger assembly | Electricity | 35 | Expired |
| US6717080B1 | Power tool trigger assembly | Electricity | 26 | Expired |
| US6736220B1 | Power tool trigger assembly | Electricity | 24 | Expired |
| US7476821B1 | Trigger mechanism | Electricity | 23 | Active |
| US7211758B2 | Circuit interrupter that produces snap-action connection and disconnection between electrical contacts | Electricity | 21 | Expired |
| US7619391B2 | Electrical appliance with battery protection | Physics | 15 | Active |
| US6919523B1 | Electrical switch | Electricity | 13 | Expired |
| US6812425B1 | Locking trigger switch mechanism | Electricity | 12 | Expired |
| US7186940B1 | Electrical switch | Electricity | 12 | Expired |
| US6958455B1 | Lock-on/lock-off tool switch | Electricity | 11 | Expired |
| US6989503B2 | Power tool trigger assembly | Electricity | 9 | Expired |
| US7468492B2 | Electrical switch | Electricity | 8 | Active |
| US7210542B2 | Power tool safety device | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6861607B2 | Electrical switch | Electricity | 7 | Expired |
| US7754989B2 | Electrical switch | Electricity | 6 | Active |
| US6791038B1 | Electrical switch | Electricity | 4 | Expired |
| US6897389B2 | Electrical switch | Electricity | 4 | Expired |
| US10838525B2 | Control knob for controlling operation of a machine | Electricity | 3 | Active |
| US9756740B2 | Electrical switch assembly | Electricity | 2 | Active |
| US7224558B2 | Method and apparatus for electromechanically interrupting and reconnecting circuits | Electricity | 2 | Expired |
| US8604376B2 | Electrical switch | Electricity | 2 | Active |
| US7975982B2 | Electromagnetic valve | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US10649556B2 | Control knob for controlling operation of a machine | Electricity | 1 | Active |
| US10547257B2 | Variable-speed controller for use with an electric device | Electricity | 1 | Active |
| US9089017B2 | Method of controlling lights and controller therefor | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.