Patents by Inventor Donald E. Laslie

Donald E. Laslie 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).

  • Cigarette and filter with cellulosic flavor addition
    Patent number: 7866324
    Abstract: A cigarette having a multi-component filter wherein an upstream sorbent removes at least one constituent from mainstream tobacco smoke passing through the filter and a downstream flavor segment compensates for taste lost to the sorbent. The flavor component includes cellulosic flavor bearing granules which release volatile flavor constituents into the mainstream smoke under ambient conditions. The cellulosic granules include microcrystalline cellulose or other cellulosic material which can be formed into a paste with the flavor additive, extruded and spheronized to form the flavor granules.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: January 11, 2011
    Assignee: Philip Morris USA Inc.
    Inventors: Richard Jupe, Rowland W. Dwyer, Donald E. Laslie, Arlington L. Finley, Barbara G. Taylor, Cecil M. Smith, Vivian E. Willis
  • Filter materials
    Patent number: 5738119
    Abstract: Cigarette filters which comprise hydroentangled lyocell staple fibers are disclosed. High filter efficiencies, good taste properties, good resistance to staining, good physical resilience and good air flow characteristics are observed when cigarettes containing such filters are smoked.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: April 14, 1998
    Assignee: Courtaulds Fibres (Holdings) Limited
    Inventors: William B. Edwards, III, Navin Gautam, Paul N. Gauvin, Donald E. Laslie, Kenneth A. Newman, Calvin R. Woodings
  • Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
    Patent number: 5622190
    Abstract: A concentric smoking filter in which the peripheral filter medium is a fibrous tow, such as fibrous cellulose acetate tow, and the core filter medium is a web material, such as paper, loaded with carbon particles, is provided. The filter improves the taste, particularly, of "ultra-light" cigarettes.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: April 22, 1997
    Assignee: Philip Morris Incorporated
    Inventors: Cynthia W. Arterbery, W. Timothy Callaham, Gus D. Keritsis, Donald E. Laslie, Kenneth A. Newman, Roger S. Slagle, Morris F. White, Jr.
  • Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
    Patent number: 5365951
    Abstract: A concentric smoking filter in which the peripheral filter medium is a fibrous tow, such as fibrous cellulose acetate tow, and the core filter medium is a web material, such as paper, loaded with carbon particles, is provided. The filter improves the taste, particularly, of "ultra-light" cigarettes.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: November 22, 1994
    Assignee: Philip Morris Incorporated
    Inventors: Cynthia W. Arterbery, W. Timothy Callaham, Gus D. Keritsis, Donald E. Laslie, Kenneth A. Newman, Roger S. Slagle, Morris F. White, Jr.