Patents by Inventor William Thomas Hall

William Thomas Hall 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).

  • Compact portable toothbrush
    Patent number: 7815383
    Abstract: The compact toothbrush (10) has a handle that is designed so that the toothbrush (10) can be held within a user's open palm. The toothbrush's lower portion (12) has a substantially triangular contour. The toothbrush has a bristled head (14) and an oppositely disposed support rib (26). The support rib extends along the longitudinal axis of the toothbrush from an upper edge of the toothbrush's head (14), to a central region of the toothbrush's lower portion. The lower portion of the toothbrush handle has first and second opposed, outwardly flared side edges (30, 32) that are joined together at the lower edge (34) so that the lower portion has a substantially V-shaped cross-sectional contour. The user cups the toothbrush (10) in the palm of his hand and extends two fingers adjacent to the support rib to stabilize the toothbrush (10) while brushing his teeth.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: October 19, 2010
    Inventor: William Thomas Hall
  • Black inkjet ink
    Patent number: 7806969
    Abstract: The present invention pertains to an aqueous-based black inkjet ink comprising a mixture of Direct Black 168, Acid Blue 290 and a certain magenta dye. The ink exhibits good color neutrality and gray scale.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: October 5, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Jose Esteban Valentini, Kuo Hsiung Kung, James A. Silver, William Thomas Hall
  • BLACK INKJET INK
    Publication number: 20100024682
    Abstract: The present invention pertains to an aqueous-based black inkjet ink comprising a mixture of Direct Black 168, Acid Blue 290 and a certain magenta dye. The ink exhibits good color neutrality and gray scale.
    Type: Application
    Filed: July 29, 2009
    Publication date: February 4, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: JOSE ESTEBAN VALENTINI, Kuo Hsiung Kung, James A. Silver, William Thomas Hall
  • Compact Portable Toothbrush
    Publication number: 20090288262
    Abstract: The compact toothbrush (10) has a handle that is designed so that the toothbrush (10) can be held within a user's open palm. Preferably, the toothbrush's lower portion (12) has a substantially triangular contour. The toothbrush has a bristled head (14) and an oppositely disposed support rib. The support rib extends along the longitudinal axis of the toothbrush from an upper edge of the toothbrush's head (14), to a central region of the toothbrush's lower portion. The user cups the toothbrush (10) in the palm of his hand and extends two fingers adjacent to the support rib to stabilize the toothbrush (10) while brushing his teeth.
    Type: Application
    Filed: February 15, 2007
    Publication date: November 26, 2009
    Inventor: William Thomas Hall
  • Inkjet ink and ink set
    Patent number: 7279032
    Abstract: The present invention pertains to a yellow ink for inkjet printing and, in particular, to a yellow ink comprising a combination of specific yellow colorants. The present invention further pertains to an ink set comprising this yellow ink. The ink and ink set are particularly advantageous for printing on plain paper.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: October 9, 2007
    Assignee: E.I. du Pont de Nemours & Co
    Inventors: James Walter Wheeler, Kuo Hsiung Kung, Sandra Laurine Issler, Jose Esteban Valentini, William Thomas Hall
  • Interactive ink set for inkjet printing
    Patent number: 7045002
    Abstract: This invention pertains to an ink set for inkjet printing, in particular to an ink set wherein all the inks are mutually interactive so as to reduce bleed of one color into another. The invention also pertains to a method of inkjet printing with this mutually interactive ink set.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: May 16, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Richard Douglas Bauer, Clarence Gaetano Hermansky, William Thomas Hall
  • Interactive ink set for inkjet printing
    Publication number: 20040168608
    Abstract: This invention pertains to an ink set for inkjet printing, in particular to an ink set wherein all the inks are mutually interactive so as to reduce bleed of one color into another. The invention also pertains to a method of inkjet printing with this mutually interactive ink set.
    Type: Application
    Filed: November 6, 2003
    Publication date: September 2, 2004
    Inventors: Richard Douglas Bauer, Clarence Gaetano Hermansky, William Thomas Hall