Patents by Inventor Patrick Lam

Patrick Lam 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).

  • Vinylaromatic and olefin pseudoblock polymers
    Patent number: 6239242
    Abstract: There are a number of recent developments relating to co- and homo-polymers of vinyl aromatic monomers. There are syndiotactic polymers of styrene, there are pseudo random polymers of styrene and ethylene. The present invention seeks to provide novel pseudoblock polymers of styrene and ethylene in which at least 10 weight % of the vinyl aromatic monomer is incorporated in the form of one or more atactic pseudoblocks.
    Type: Grant
    Filed: August 21, 1999
    Date of Patent: May 29, 2001
    Assignee: Nova Chemicals Corporation
    Inventors: Qinyan Wang, Patrick Lam