Patents by Inventor William D. Thweatt

William D. Thweatt 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).

  • Smoking articles enhanced to deliver additives incorporated within electroprocessed microcapsules and nanocapsules, and related methods
    Patent number: 8353811
    Abstract: A large variety of electroprocessed capsules can be produced to encapsulate a variety of additives within the subcompartments or substructures of the manufactured capsule. Furthermore, the manufactured capsules can be arranged within a filter of a smoking article during the manufacturing process. By modifying the various parameters that control the electrospraying or electrospinning processes, capsules can be manufactured that vary in composition, in substructural organization, and in dimension. A capsule produced by electrospraying comprises at least one polymeric material that encapsulates or supports the retention of at least one flavorant and/or non-flavorant within the capsule. A polymeric material provides a supporting structure for encapsulating at least one flavorant and/or non-flavorant additive.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: January 15, 2013
    Assignee: Phillip Morris USA Inc.
    Inventors: Zhihao Shen, Manuel Marquez, Samuel I. Ogle, William D. Thweatt, Jon A. Regrut
  • Smoking articles enhanced to deliver additives incorporated within electroprocessed microcapsules and nanocapsules, and related methods
    Publication number: 20090038628
    Abstract: A large variety of electroprocessed capsules can be produced to encapsulate a variety of additives within the subcompartments or substructures of the manufactured capsule. Furthermore, the manufactured capsules can be arranged within a filter of a smoking article during the manufacturing process. By modifying the various parameters that control the electrospraying or electrospinning processes, capsules can be manufactured that vary in composition, in substructural organization, and in dimension. A capsule produced by electrospraying comprises at least one polymeric material that encapsulates or supports the retention of at least one flavorant and/or non-flavorant within the capsule. A polymeric material provides a supporting structure for encapsulating at least one flavorant and/or non-flavorant additive.
    Type: Application
    Filed: May 23, 2008
    Publication date: February 12, 2009
    Applicant: Philip Morris USA Inc.
    Inventors: Zhihao Shen, Manuel Marquez, Samuel I. Ogle, William D. Thweatt, Jon A. Regrut