Patents by Inventor Jian Pei

Jian Pei 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).

  • Blue electroluminescent materials for polymer light-emitting diodes
    Patent number: 6887972
    Abstract: A polymeric material comprising alternate substituted fluorene and phenylene units, as represented by the following formula wherein R1, R2, R3 and R4, which may be identical or different, are each selected from the group consisting of H, a (C1-C22) linear or branched alkyl, alkoxy or oligo (oxyetylene) group, a (C6-C30) cycloalkyl group, and an unsubstituted or substituted aryl group, and n is from about 3 to about 5000.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: May 3, 2005
    Assignee: Agency for Science, Technology and Research
    Inventors: Wei Huang, Wang Lin Yu, Jian Pei, Soo Jin Chua
  • Methods and system for mining frequent patterns
    Patent number: 6665669
    Abstract: This invention provides methods apparatus and data structures useful for mining databases for frequent items. The invention uses a frequent pattern tree to represent the contents of a database in a manner which is conducive to data mining. The frequent pattern tree tends to be smaller than the original database. A frequent pattern tree can be mined recursively. The frequent pattern tree and associated methods and apparatus of this invention is relatively fast, efficient and scalable and can be used to mine both long and short frequent patterns.
    Type: Grant
    Filed: December 26, 2000
    Date of Patent: December 16, 2003
    Assignee: DB Miner Technology Inc.
    Inventors: Jiawei Han, Jian Pei, Yiwen Yin, Runying Mao
  • Methods and system for mining frequent patterns
    Publication number: 20030028531
    Abstract: This invention provides methods apparatus and data structures useful for mining databases for frequent items. The invention uses a frequent pattern tree to represent the contents of a database in a manner which is conducive to data mining. The frequent pattern tree tends to be smaller than the original database. A frequent pattern tree can be mined recursively. The frequent pattern tree and associated methods and apparatus of this invention is relatively fast, efficient and scalable and can be used to mine both long and short frequent patterns.
    Type: Application
    Filed: December 26, 2000
    Publication date: February 6, 2003
    Inventors: Jiawei Han, Jian Pei, Yiwen Yin, Runying Mao
  • Blue electroluminescent materials for polymer light-emitting diodes
    Publication number: 20020013451
    Abstract: A polymeric material comprising alternate substituted fluorene and phenylene units, as represented by the following formula 1
    Type: Application
    Filed: April 24, 2001
    Publication date: January 31, 2002
    Inventors: Wei Huang, Wang Lin Yu, Jian Pei, Soo Jin Chua