Patents by Inventor Sheryl D. Baldwin

Sheryl D. Baldwin 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).

  • Wrapper for a smoking article
    Patent number: 5450862
    Abstract: The sidestream smoke associated with a cigarette or cigarette-like smoking article is reduced by wrapping the tobacco in a paper wrapper having an additive, such as an organic acid, an acidic or neutral salt or an organic acid in combination with an acidic salt or neutral salt added thereto.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: September 19, 1995
    Assignee: Philip Morris Incorporated
    Inventors: Sheryl D. Baldwin, Gordon H. Bokelman, Robert N. Ferguson, Barton Floyd, Barbro L. Goodman, Robert M. Rogers, Edward B. Sanders, Susan S. Tafur
  • Smoking article wrapper for controlling burn rate and method for making same
    Patent number: 5417228
    Abstract: This invention relates to the control of the burn rate of a cigarette. The burn rate is controlled by the use of a paper wrapper to which regions of cellulosic material is applied and bonded. The cellulosic material is applied during a manufacturing step for the base paper wrapper, either off or on-line of the paper wrapper-forming machine.
    Type: Grant
    Filed: September 1, 1993
    Date of Patent: May 23, 1995
    Assignee: Philip Morris Incorporated
    Inventors: Sheryl D. Baldwin, Navin Gautam, Kenneth S. Houghton, Robert M. Rogers, Judith L. Ryder
  • Cigarette and wrapper with controlled puff count
    Patent number: 5263500
    Abstract: A paper wrapper for a cigarette is prepared using fine particle size calcium carbonate as the mineral filler for the purpose of burn rate, puff count and tar delivery control.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: November 23, 1993
    Assignee: Philip Morris Incorporated
    Inventors: Sheryl D. Baldwin, Rowland W. Dwyer, Deborah J. Newman, Barton Floyd, Robert M. Rogers, Edward B. Sanders, Barbro L. Goodman
  • Smoking article wrapper for controlling burn rate and method for making same
    Patent number: 5263999
    Abstract: This invention relates to the control of the burn rate of a cigarette. The burn rate is controlled by the use of a paper wrapper to which regions of cellulosic material is applied and bonded. The cellulosic material is applied during a manufacturing step for the base paper wrapper, either off or on-line of the paper wrapper-forming machine.
    Type: Grant
    Filed: September 10, 1991
    Date of Patent: November 23, 1993
    Assignee: Philip Morris Incorporated
    Inventors: Sheryl D. Baldwin, Navin Gautam, Kenneth S. Houghton, Robert M. Rogers, Judith L. Ryder
  • Smoking articles using novel paper wrapper
    Patent number: 5168884
    Abstract: The calcium carbonate filler level or the basis weight of a paper wrapper for a smoking article is varied to enable the designing of smoking articles with specific characteristics including a specific puff count, tar delivery and carbon monoxide delivery.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: December 8, 1992
    Assignee: Philip Morris Incorporated
    Inventors: Sheryl D. Baldwin, Edward B. Sanders, James L. Myracle, Barbro L. Goodman, Cynthia W. Arterbery, Willard A. Geiszler, Barton Floyd, Warren E. Claflin
  • Paper wrapper having improved ash characteristics
    Patent number: 5161551
    Abstract: The ash characteristics of a cigarette paper wrapper are improved by using fine particle size calcium carbonate filler. In addition, increased calcium carbonate filler loading level, increased basis weight, and various combinations of these variables are used to achieve improved ash characteristics.
    Type: Grant
    Filed: April 12, 1991
    Date of Patent: November 10, 1992
    Assignee: Philip Morris Incorporated
    Inventors: Edward B. Sanders, Sheryl D. Baldwin, Barbro L. Goodman, Cynthia W. Arterbery, James L. Myracle
  • Wrapper for a smoking article
    Patent number: 5152304
    Abstract: The sidestream smoke associated with a cigarette or cigarette-like smoking article is reduced by wrapping the tobacco in a paper wrapper having a burn modifier, such as an acidic salt, added thereto. Preferably the paper wrapper has a high basis weight and low porosity.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: October 6, 1992
    Assignee: Philip Morris Incorporated
    Inventors: Gordon H. Bokelman, Sheryl D. Baldwin, Susan S. Tafur, Robert N. Ferguson, Barbro L. Goodman, Robert M. Rogers
  • Multiple layer cigarette paper for reducing sidestream smoke
    Patent number: 5143098
    Abstract: The sidestream smoke associated with a cigarette or cigarette-like smoking article is reduced by wrapping the tobacco in a single sheet of paper having multiple layers.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: September 1, 1992
    Assignee: Philip Morris Incorporated
    Inventors: Robert M. Rogers, Gordon H. Bokelman, Sheryl D. Baldwin, Susan S. Tafur