Patents Assigned to Craig Lesser
  • Cigarette filter containing dry water and microcapsules
    Patent number: 6164288
    Abstract: A tobacco smoke filter containing a porous substrate having dry water and microcapsules dispersed therein. The microcapsules contain at least one compound selected from the group consisting of chlorophyllin, methylcellulose, sodium pyroglutamate and a vegetable oil. The tobacco smoke filter can also contain one or more substances such as a porphyrin, and sodium pyroglutamate.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: December 26, 2000
    Assignee: Craig Lesser
    Inventors: Craig Lesser, Reid W. Von Borstel
  • Cigarette filter containing dry water and microcapsules
    Patent number: 5975086
    Abstract: A tobacco smoke filter consisting essentially of a porous substrate having dry water and microcapsules dispersed therein. The microcapsules comprise at least one substance selected from the group consisting of chlorophyllin, methylcellulose, sodium pyroglutamate and a vegetable oil.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: November 2, 1999
    Assignee: Craig Lesser
    Inventors: Craig Lesser, Reid W. Von Borstel
  • Cigarette filter containing a humectant
    Patent number: 5860428
    Abstract: A cigarette filter comprises a humectant, preferably sodium pyroglutamate, and optionally a surfactant. The humectant absorbs moisture from the tobacco smoke for wet-filtration of the tobacco smoke.
    Type: Grant
    Filed: October 13, 1995
    Date of Patent: January 19, 1999
    Assignee: Craig Lesser
    Inventors: Craig Lesser, Reid W Von Borstel
  • Tobacco smoke filter for removing toxic compounds
    Patent number: 5746231
    Abstract: A tobacco smoke filter comprising a porous substrate having a humectant, such as sodium pyroglutamate, dispersed therein to absorb moisture from the tobacco smoke thereby wet-filtering the tobacco smoke. The tobacco smoke filter can also comprise a porous substrate having microcapsules dispersed therein. The microcapsules can comprise a humectant such as sodium pyroglutamate. The microcapsules further preferably comprise one or more of methylcellulose, chlorophyllin and at least one vegetable oil. The tobacco smoke filter can also comprise a porous substrate having dry water and a porphyrin dispersed therein. The tobacco smoke filter can also comprise a porous substrate having a copper-containing porphyrin dispersed therein.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: May 5, 1998
    Assignee: Craig Lesser
    Inventors: Craig Lesser, Reid W. Von Borstel