Patents by Inventor Donald Kam-Chuen Chan

Donald Kam-Chuen Chan 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).

  • Publication number: 20160171489
    Abstract: A method for exchanging promotional offers and an exchange system are provided. In an embodiment, the method includes receiving an exchange request of exchanging promotional offers for products. Information about the promotional offers is retrieved. Optionally the values of promotional offers from a variety of sources are converted into a single value and/or currency. In an embodiment, the exchange request is verified. Upon successful verification, the promotional offers are deducted, and the exchange transaction of the products are processed. Optionally other payment methods may be used in combination with the promotional offers and/or when the promotional offers are insufficient for purchasing the product desired.
    Type: Application
    Filed: December 11, 2015
    Publication date: June 16, 2016
    Inventors: Jason Felix Tsz-Kiu Chiu, Donald Kam-Chuen Chan, Tak-Ko Chan