Chinghua Chen

3 Patents

• US123601002025

  Health Seat for Toilets and Bidets

  Kohler Co.

  0 cites
• US119275882024

  Health Seat for Toilets and Bidets

  Kohler Co.

  0 cites
• US116220672023

  Connected Bathroom Components

  Kohler Co.

  0 cites