Patents by Inventor Yuanqi Wu

Yuanqi Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Optically variable security threads and stripes
    Patent number: 9844969
    Abstract: In the field of protection of value documents and value commercial goods, the present disclosure relates to the field of security threads or stripes to be incorporated into or onto security documents, and security documents having security threads or stripes. The security threads or stripes include i) first optically variable layer imparting a first different color impression at different viewing angles, ii) second optically variable layer imparting a second different color impression at different viewing angles, iii) first color constant layer having a color matching color impression of the first or second optically variable layer at a first viewing angle, iv) second color constant layer having a color matching color impression of the first or second optically variable layer at a second viewing angle, and v) a substrate. The layers are jointly visible from one side of the security thread or stripe.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: December 19, 2017
    Assignees: SICPA HOLDINGS SA, ZHONGCHAO SPECIAL SECURITY TECHNOLOGY CO., LTD., CHINA BANKNOTE SICPA SECURITY INK CO., LTD., CHINA BANKNOTE PRINTING AND MINTING CORPORATION
    Inventors: Gebhard Ritter, Raynald Demange, Pierre Degott, Zhongdong Ye, Yuanqi Wu, Fangyi Sun, Weiru Wang, Xiang Li
  • OPTICALLY VARIABLE SECURITY THREADS AND STRIPES
    Publication number: 20150258837
    Abstract: In the field of protection of value documents and value commercial goods, the present disclosure relates to the field of security threads or stripes to be incorporated into or onto security documents, and security documents having security threads or stripes. The security threads or stripes include i) first optically variable layer imparting a first different color impression at different viewing angles, ii) second optically variable layer imparting a second different color impression at different viewing angles, iii) first color constant layer having a color matching color impression of the first or second optically variable layer at a first viewing angle, iv) second color constant layer having a color matching color impression of the first or second optically variable layer at a second viewing angle, and v) a substrate. The layers are jointly visible from one side of the security thread or stripe.
    Type: Application
    Filed: August 1, 2012
    Publication date: September 17, 2015
    Applicants: SICPA HOLDING SA, CHINA BANKNOTE PRINTING AND MINTING CORPORATION, ZHONGCHAO SPECIAL SECURITY TECHNOLOGY CO., LTD., CHINA BANKNOTE SICPA SECURITY INK CO., LTD.
    Inventors: Gebhard Ritter, Raynald Demange, Pierre Degott, Zhongdong Ye, Yuanqi Wu, Fangyi Sun, Weiru Wang, Xiang Li