Yuan-chen Chen

4 Patents

• US116869252023

  Wide-angle Lens Assembly Including Five Lenses of -+++-, or Six Lenses of -++-+- Refractive Powers

  ASIA OPTICAL CO., Inc.

  0 cites
• US116122572023

  Valve Body, Electromagnet Switch Valve and Bed Structure

  Brilliant Product Design Co., Ltd.

  0 cites
• US115860162023

  Lens Assembly

  ASIA OPTICAL CO., Inc.

  0 cites
• US115644852023

  Adjustable Keyboard Bracket Mechanism

  CHEN-SOURCE Inc.

  0 cites