Patents by Inventor Chak Ming Li

Chak Ming Li 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).

  • Patent number: 7636737
    Abstract: Web sites, such as collaborative web sites, support a multi-stage recycling bin scheme in which items erroneously deleted from a web site can be restored to the web site. In a multi-stage recycling bin scheme a user deletes an item from a web site to a user recycle bin. The item is also deleted to a web site first stage recycle bin. On a subsequent delete of the item from the user recycle bin, the item is deleted from the user's recycle bin and the web site first stage recycle bin to a web site second stage recycle bin. Only when the item is deleted for a third time, from the web site second stage recycle bin, is the item permanently deleted from the web site. Prior to a permanent delete from the web site second stage recycle bin, an item can be restored to the web site.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: December 22, 2009
    Assignee: Microsoft Corporation
    Inventors: Samer Fouad Sawaya, Chak Ming Li