Zbigniew Sagan

3 Patents

• US124689142025

  Method and Device for Securing a Document and Method and Device for Authenticating a Document, Document Secured Using Such a Method

  0 cites
• US124638242025

  Method and Device for Securing an Object and Method for Authenticating an Object

  0 cites
• US123463972025

  Method and Device for Accessing a Web Page and Method and Device for Generating a Graphic Code for Accessing a Web Page

  0 cites