Qingbo Yan

7 Patents

• US126078782026

  Myopia Prevention and Control Spectacle Lens

  Jiangsu Conant Optical Co., Ltd

  0 cites
• US123728082025

  Spectacle Lens

  Shanghai Conant Optical Co., Ltd.

  0 cites
• US123394192025

  Anti-blue Light Resin Lens with Refractive Index of 1.50 and Preparation Method Thereof

  Shanghai Conant Optical Co., Ltd.

  0 cites
• US121892152025

  Front Curve Design Method for Preparing Resin Lens with High Refractive Index

  Shanghai Conant Optical Co., Ltd.

  0 cites
• US121304492024

  Anti-blue Light Anti-infrared Resin Lens with Refractivity of 1.50 and Preparation Method Thereof

  Shanghai Conant Optical Co., Ltd.

  0 cites
• US120604472024

  Photochromic Resin Lens with Refractivity of 1.50 and Preparation Method Thereof

  Shanghai Conant Optical Co., Ltd.

  0 cites
• US117723412023

  Dyeable 1.74 Resin Lens and Preparation Method Thereof

  Shanghai Conant Optical Co., Ltd.

  0 cites