Patents by Inventor Jan Robert Christian Svensson Stark

Jan Robert Christian Svensson Stark 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: 9265283
    Abstract: A class of molecularly imprinted polymers that specifically recognizes and binds to TSNAs are useful, for example, in analysis and separation of TSNAs from biological fluids. Such polymers are also useful in methods of treating and manufacturing tobacco products and materials. Also disclosed are selectively adsorbent non-molecularly imprinted polymer of a non-acidic monomer and a cross-linker having polar functionality, one of which is hydrophilic, the other of which is hydrophobic, and the use of such polymers in the treatment of materials containing nicotine and nitrosamine.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: February 23, 2016
    Assignee: British American Tobacco (Investments) Limited
    Inventors: Ola John Ivar Karlsson, Johan Fredrik Billing, Ecevit Yilmaz, Jan Robert Christian Svensson Stark
  • Patent number: 9243096
    Abstract: Porous beads are provided of a polymer of a non-acidic monomer and a cross-linker having polar functionality, one of which is hydrophilic, the other of which is hydrophobic, further comprising residues of polyvinyl alcohol. The beads may be molecularly imprinted or non-molecularly imprinted. The use of such beads in the removal of nitroso-containing compounds from material containing them is also disclosed. Also disclosed is a non-molecularly imprinted polymer which is selectively adsorbent for at least one tobacco specific nitrosamine in the presence of nicotine, said polymer being a polymerization product of a non-acidic monomer and a cross-linker having polar functionality, one of which is hydrophilic, the other of which is hydrophobic.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: January 26, 2016
    Assignee: British American Tobacco (Investments) Limited
    Inventors: Ola John Ivar Karlsson, Johan Fredrik Billing, Ecevit Yilmaz, Jan Robert Christian Svensson Stark
  • Publication number: 20130139835
    Abstract: A class of molecularly imprinted polymers that specifically recognizes and binds to TSNAs are useful, for example, in analysis and separation of TSNAs from biological fluids. Such polymers are also useful in methods of treating and manufacturing tobacco products and materials. Also disclosed are selectively adsorbent non-molecularly imprinted polymer of a non-acidic monomer and a cross-linker having polar functionality, one of which is hydrophilic, the other of which is hydrophobic, and the use of such polymers in the treatment of materials containing nicotine and nitrosamine.
    Type: Application
    Filed: January 18, 2013
    Publication date: June 6, 2013
    Applicant: British American Tobacco (Investments) Limited
    Inventors: Ola John Ivar Karlsson, Johan Fredrik Billing, Ecevit Yilmaz, Jan Robert Christian Svensson Stark