Registered Patents & Utility Models

• Patent No. 0267819 The Method of Detecting Variations in Image Sequences
  
• Patent No. 0322419 The Device for Automatically Tracing Objects
  
• Patent No. 0440210 The Temperature-Sensitive Power Connector & Switch
  
• Patent No. 0446422 The Control Mechanism for the Opening/Closing Motions of an Electronic Valve
  
• Patent No.0457248 Coil Winding in an Electronic Valve and the Method of Winding the Coil
  
• Patent No. 0457778 The Control Mechanism for the Opening/Closing Motions of an Electronic Valve
  
• Patent No.0477002 The Electronic Valve (Ⅰ)
  
• Patent No. 0484392 The Electronic Valve (Ⅱ)
  
• Patent No. 0493947 The Electronic Gas Valve
  
• Patent No. 0550961 The Power Supply Breaker
  
• Utility Model No. 0355665 The Mouthpiece for Breathalyzer
  
• Utility Model No. 0357468 The Alcohol Sensor of Breathalyzer
  
• Utility Model No. 0386559 The Battery Charge/Discharge Detection System
  
• Utility Model No. 0409150 Air Quality Monitoring and Anion Generation Device
  
• Utility Model No. 20-0416893 The Multi-functional Anion Generation Device
  
• Utility Model No. 20-0429408 Unmanned surveillance system equipped with gas monitor