Patents by Inventor Alice Gu

Alice Gu 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: 8807144
    Abstract: Smoking articles having reduced ignition proclivity characteristics are disclosed. The smoking articles include a wrapper comprising cellulosic fibers and a filler. In accordance with the present disclosure, the filler has a particle size of at least about 3.2 microns and is present in the wrapper in an amount less than about 20% by weight. Further, the wrapper may have a basis weight of less than about 23 gsm and a permeability of from about 15 Coresta to about 110 Coresta. It has been discovered that such wrappers are capable of reducing the ignition proclivity characteristics of a smoking article. If desired, the particular wrapper as described above can also contain discrete areas treated with an ignition reducing composition which further serves to reduce the ignition proclivity characteristics of the article.
    Type: Grant
    Filed: February 21, 2008
    Date of Patent: August 19, 2014
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventors: Vladimir Hampl, Jr., Alice Gu, James Rossi-Espagnet
  • Patent number: 8443812
    Abstract: The present invention is directed to smoking articles having reduced carbon monoxide delivery are described. A carbon monoxide reducing agent is incorporated into the smoking article in order to reduce carbon monoxide levels in mainstream smoke. The carbon monoxide reducing agent may be, for instance, in metal oxide or in metal carbonate. The carbon monoxide reducing agent may be incorporated into a wrapper and/or into a column of smokable filler that are used to construct the smoking article.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: May 21, 2013
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventors: Vladimir Hampl, Jr., Alice Gu, Kerry Mahone
  • Patent number: 8353301
    Abstract: The present invention is directed to smoking articles having reduced carbon monoxide delivery are described. A carbon monoxide reducing agent is incorporated into the smoking article in order to reduce carbon monoxide levels in mainstream smoke. The carbon monoxide reducing agent may be, for instance, in metal oxide or in metal carbonate. The carbon monoxide reducing agent may be incorporated into a wrapper and/or into a column of smokable filler that are used to construct the smoking article.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: January 15, 2013
    Assignee: Schweitzer-Mauduit International, Inc.
    Inventors: Vladimir Hampl, Jr., Alice Gu, Kerry Mahone
  • Publication number: 20120012124
    Abstract: The present invention is directed to smoking articles having reduced carbon monoxide delivery are described. A carbon monoxide reducing agent is incorporated into the smoking article in order to reduce carbon monoxide levels in mainstream smoke. The carbon monoxide reducing agent may be, for instance, in metal oxide or in metal carbonate. The carbon monoxide reducing agent may be incorporated into a wrapper and/or into a column of smokable filler that are used to construct the smoking article.
    Type: Application
    Filed: September 26, 2011
    Publication date: January 19, 2012
    Applicant: SCHWEITZER-MAUDUIT INTERNATIONAL, INC.
    Inventors: Vladimir Hampl, JR., Alice Gu, Kerry Mahone
  • Publication number: 20090283104
    Abstract: The present invention is directed to smoking articles having reduced carbon monoxide delivery are described. A carbon monoxide reducing agent is incorporated into the smoking article in order to reduce carbon monoxide levels in mainstream smoke. The carbon monoxide reducing agent may be, for instance, in metal oxide or in metal carbonate. The carbon monoxide reducing agent may be incorporated into a wrapper and/or into a column of smokable filler that are used to construct the smoking article.
    Type: Application
    Filed: July 24, 2009
    Publication date: November 19, 2009
    Inventors: Vladimir Hampl, JR., Alice Gu, Kerry Mahone
  • Publication number: 20080202542
    Abstract: Smoking articles having reduced ignition proclivity characteristics are disclosed. The smoking articles include a wrapper comprising cellulosic fibers and a filler. In accordance with the present disclosure, the filler has a particle size of at least about 3.2 microns and is present in the wrapper in an amount less than about 20% by weight. Further, the wrapper may have a basis weight of less than about 23 gsm and a permeability of from about 15 Coresta to about 110 Coresta. It has been discovered that such wrappers are capable of reducing the ignition proclivity characteristics of a smoking article. If desired, the particular wrapper as described above can also contain discrete areas treated with an ignition reducing composition which further serves to reduce the ignition proclivity characteristics of the article.
    Type: Application
    Filed: February 21, 2008
    Publication date: August 28, 2008
    Applicant: Schweitzer-Mauduit International, Inc.
    Inventors: Vladimir Hampl, Alice Gu, James Rossi-Espagnet
  • Publication number: 20050005947
    Abstract: The present invention is directed to smoking articles having reduced carbon monoxide delivery are described. A carbon monoxide reducing agent is incorporated into the smoking article in order to reduce carbon monoxide levels in mainstream smoke. The carbon monoxide reducing agent may be, for instance, in metal oxide or in metal carbonate. The carbon monoxide reducing agent may be incorporated into a wrapper and/or into a column of smokable filler that are used to construct the smoking article.
    Type: Application
    Filed: July 11, 2003
    Publication date: January 13, 2005
    Inventors: Vladimir Hampl, Alice Gu, Kerry Mahone