Patents by Inventor Jean L. Spencer

Jean L. Spencer 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).

  • Patent number: 6986809
    Abstract: Erasable inks are provided for use in a writing instruments. In one aspect, the inks include a solvent, and, dispersed in the solvent as a colorant, a pigment having a flake-like morphology, the ink being substantially free of other colorants.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: January 17, 2006
    Assignee: Berol Corporation
    Inventors: Jean L. Spencer, Pawel Czubarow
  • Publication number: 20040225032
    Abstract: Erasable inks are provided for use in a writing instruments. In one aspect, the inks include a solvent, and, dispersed in the solvent as a colorant, a pigment having a flake-like morphology, the ink being substantially free of other colorants.
    Type: Application
    Filed: June 14, 2004
    Publication date: November 11, 2004
    Applicant: Berol Corporation
    Inventors: Jean L. Spencer, Pawel Czubarow
  • Patent number: 6749676
    Abstract: Erasable inks are provided for use in a writing instruments. In one aspect, the inks include a solvent, and, dispersed in the solvent as a colorant, a pigment having a flake-like morphology, the ink being substantially free of other colorants.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: June 15, 2004
    Assignee: Berol Corporation
    Inventors: Jean L. Spencer, Pawel Czubarow
  • Patent number: 6663704
    Abstract: Pearlescent inks are provided. The inks are suitable for use in writing instruments, and include a dispersion of a pearlescent pigment in a solvent. Some inks are erasable and/or shear-thinning.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: December 16, 2003
    Assignee: Berol Corporation
    Inventors: Jean L. Spencer, Pawel Czubarow, Yoojeong Kim
  • Patent number: 6601631
    Abstract: The invention features dispensers for applying a material, e.g., a tape, to a surface. For example, the invention features a dispenser for applying a material to a surface, including a housing, at least a major portion of which is substantially cylindrical; within the housing, a supply spool rotatable about an axis and a quantity of material stored on the supply spool in a plurality of widths wide; and, at one end of the housing, an applicator head about which the material is passed, the head being constructed to press the material against the surface, the head having an edge, over which the material passes, that is disposed at an angle of greater than 5 degrees relative to a plane that is perpendicular to the longitudinal center axis of the housing.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: August 5, 2003
    Assignee: Berol Corporation
    Inventors: Crispin M. Miller, Jean L. Spencer
  • Patent number: 6599353
    Abstract: An erasable, shear-thinning writing composition includes a shear-thinning additive and graphite particles dispersed within an aqueous solvent system.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: July 29, 2003
    Assignee: Berol Corporation
    Inventors: Jean L. Spencer, Pawel Czubarow
  • Publication number: 20030041776
    Abstract: An erasable, shear-thinning writing composition includes a shear-thinning additive and graphite particles dispersed within an aqueous solvent system.
    Type: Application
    Filed: June 6, 2001
    Publication date: March 6, 2003
    Inventors: Jean L. Spencer, Pawel Czubarow
  • Patent number: 6499524
    Abstract: A dispenser for applying a material to a surface includes a supply spool rotatable about an axis, a quantity of unused tape stored on the supply spool, and an applicator head about which the tape is passed. The head presses the tape against a surface to deposit a transfer layer of the tape onto the surface. A take-up spool stores a backing layer of the tape after the transfer layer has been deposited on the surface. The take-up spool is also rotatable about the axis. A housing surrounds at least a majority of the tape, a substantial portion of the housing being substantially cylindrical in shape. The tape is guided from the supply spool to the head and from the head to the take-up spool. The applicator head is located substantially along the axis, and the spools are movable along the axis. The tape causes movement of the spools along the axis as the spools are rotated about the axis. The-tape is stored on each spool in a plurality of tape layers thick and a plurality of tape widths wide.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: December 31, 2002
    Assignee: Berol Corporation
    Inventors: Crispin M. Miller, Jean L. Spencer, John M. Fritz, William Baird Shambley, Vitaly Pesikov
  • Publication number: 20020096083
    Abstract: Pearlescent inks are provided. The inks are suitable for use in writing instruments, and include a dispersion of a pearlescent pigment in a solvent. Some inks are erasable and/or shear-thinning.
    Type: Application
    Filed: July 3, 2001
    Publication date: July 25, 2002
    Inventors: Jean L. Spencer, Pawel Czubarow, Yoojeong Kim
  • Patent number: 6402411
    Abstract: A hand-held fluid delivery system includes a rigid body, a collapsible enclosure within the body, a fluid (e.g., correction fluid) within the enclosure, and a delivery end in communication with the collapsible enclosure. The delivery system preferably includes a spring that applies pressure to deliver fluid from the collapsible enclosure to the delivery end.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: June 11, 2002
    Assignee: Berol Corporation
    Inventors: Jean L. Spencer, Crispin M. Miller, John M. Fritz, John Thompson
  • Patent number: 6368000
    Abstract: Writing instruments include a foam layer covering the outer surface of a preformed tubular core. The writing instruments are formed by a pultrusion process.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: April 9, 2002
    Assignee: Berol Corporation
    Inventors: Edward Hosung Park, Philip J. Sweeney, William R. Brown, Jr., Jean L. Spencer, John M. Fritz
  • Publication number: 20020033116
    Abstract: Erasable inks are provided for use in a writing instruments. In one aspect, the inks include a solvent, and, dispersed in the solvent as a colorant, a pigment having a flake-like morphology, the ink being substantially free of other colorants.
    Type: Application
    Filed: July 3, 2001
    Publication date: March 21, 2002
    Inventors: Jean L. Spencer, Pawel Czubarow
  • Publication number: 20010048840
    Abstract: A hand-held fluid delivery system includes a rigid body, a collapsible enclosure within the body, a fluid (e.g., correction fluid) within the enclosure, and a delivery end in communication with the collapsible enclosure. The delivery system preferably includes a spring that applies pressure to deliver fluid from the collapsible enclosure to the delivery end.
    Type: Application
    Filed: December 7, 1999
    Publication date: December 6, 2001
    Inventors: JEAN L. SPENCER, CRISPIN M. MILLER, JOHN M. FRITZ, JOHN THOMPSON
  • Publication number: 20010007161
    Abstract: The present invention relates to a toothbrush with uniform diameter bristles containing a polishing agent with a particle size of from about 0.01 &mgr;m to about 100 &mgr;m, wherein cleaning of the teeth is improved without any of the adverse side effects associated with over aggressive abrasion. An embodiment of the present invention includes a toothbrush including a handle associated with a head having at least one tuft securely affixed in or attached to the head, said tuft including a plurality of filaments comprised of (a) a thermoplastic filament base material and (b) an effective polishing amount of a polishing agent having a particle size of from about 0.1 &mgr;m to about 10 &mgr;m. Particles less than 0.1 &mgr;m can be used if aggregation occurs such that the aggregate size on bristle is described.
    Type: Application
    Filed: February 1, 2001
    Publication date: July 12, 2001
    Applicant: Gillette Canada Company, Reel
    Inventors: Thomas Craig Masterman, Jean L. Spencer, Donna J. Beals
  • Patent number: 6199242
    Abstract: The present invention relates to a toothbrush with uniform diameter bristles containing a polishing agent with a particle size of from about 0.01 &mgr;m to about 100 &mgr;m, wherein cleaning of the teeth is improved without any of the adverse side effects associated with over aggressive abrasion. An embodiment of the present invention includes a toothbrush including a handle associated with a head having at least one tuft securely affixed in or attached to the head, said tuft including a plurality of filaments comprised of (a) a thermoplastic filament base material and (b) an effective polishing amount of a polishing agent having a particle size of from about 0.1 &mgr;m to about 10 &mgr;m. Particles less than 0.1 &mgr;m can be used if aggregation occurs such that the aggregate size on bristle is described.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: March 13, 2001
    Assignee: Gillette Canada Company
    Inventors: Thomas Craig Masterman, Jean L. Spencer, Donna J. Beals
  • Patent number: 6145516
    Abstract: A dental hygiene article, including a dental floss, and a microcapsule associated with a portion of the floss. The microcapsule includes a pigment encapsulated within the microcapsule for changing the color of a portion of the floss associated with the microcapsule upon rupture of the microcapsule as an indication of use or release of an active agent.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: November 14, 2000
    Assignee: Gillette Canada Inc.
    Inventors: Gordon G. Guay, Jean L. Spencer, Ronald R. Duff, Jr.
  • Patent number: 6108851
    Abstract: The present invention relates to a toothbrush which exhibits superior interproximal and gingival margin cleaning. The toothbrush includes an elongated handle member connected to a toothbrush head member. The head is divided into two regions. A "toe" region is defined as the part of the head which is furthest from the handle and a "heel" region is the portion of the head which is closest to the handle. A multiplicity of bristles extend from the heel region of the head; the distal ends of these bristles form a longitudinally aligned concave shape when viewed on end.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: August 29, 2000
    Assignee: Gillette Canada Inc.
    Inventors: William A. Bredall, Miklos M. Breuer, Ximena A. Gavino, Christopher Loew, Jeffrey Scott Meessmann, Douglas J. McDowell, Alberto B. Sabato, Jean L. Spencer, James D. Vidra, Stanley Wreford
  • Patent number: 6027272
    Abstract: A hand-held fluid delivery system includes a rigid body, a collapsible enclosure within the body, a fluid (e.g., correction fluid) within the enclosure, and a delivery end in communication with the collapsible enclosure. The delivery system preferably includes a spring that applies pressure to deliver fluid from the collapsible enclosure to the delivery end.
    Type: Grant
    Filed: June 19, 1998
    Date of Patent: February 22, 2000
    Assignee: The Gillette Company
    Inventors: Jean L. Spencer, Crispin M. Miller, John M. Fritz, John Thompson
  • Patent number: 6027592
    Abstract: Improved dental flosses are provided, including multicomponent coextruded filaments and/or filaments having a multilobal cross-section. Some preferred flosses of the invention are capable of bulking.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: February 22, 2000
    Assignee: Gillette Canada Inc.
    Inventors: Mingchih M. Tseng, Thomas Craig Masterman, Edward Hosung Park, Michael F. Roberts, Jean L. Spencer
  • Patent number: 6006394
    Abstract: The present invention relates to a toothbrush which exhibits superior interproximal and gingival margin cleaning. The toothbrush includes an elongated handle member connected to a toothbrush head member. The head is divided into two regions. A "toe" region is defined as the part of the head which is furthest from the handle and a "heel" region is the portion of the head which is closest to the handle. A multiplicity of bristles extend from the heel region of the head; the distal ends of these bristles form a longitudinally aligned concave shape when viewed on end.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: December 28, 1999
    Assignee: Gillette Canada Inc.
    Inventors: William A. Bredall, Miklos M. Breuer, Ximena A. Gavino, Christopher Loew, Jeffrey Scott Meessmann, Douglas J. McDowell, Alberto B. Sabato, Jean L. Spencer, James D. Vidra, Stanley Wreford