Patents by Inventor Marcia Kilgore

Marcia Kilgore 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).

  • Item of footwear
    Patent number: 11129438
    Abstract: An item of footwear for increasing leg-muscle and/or lower-abdominal-/back-muscle tone comprising: a securing means for securing the item of footwear to a foot of a user; and a sole comprising at least an upper layer, for engaging a foot of a user in use or a further upper layer, and a lower layer, for engaging the ground in use, wherein the upper layer comprises two or more materials of different compressive resistances, or densities, arranged as a frontal/toe region, an arch region and a heel region, the sole is arranged such that application of a user's weight, during use, causes instability in at least one portion of the upper layer, which requires balance correction by a user.
    Type: Grant
    Filed: July 29, 2016
    Date of Patent: September 28, 2021
    Assignee: FitFlop Limited
    Inventors: Marcia Kilgore, David Cook
  • Item of footwear
    Patent number: 10104935
    Abstract: An item of footwear for increasing leg-muscle and/or lower-abdominal-/back-muscle tone comprising: a strap arrangement for securing the item of footwear to a foot of a user; and a sole comprising at least an upper layer, for engaging a foot of a user in use or a further upper layer, and a lower layer, for engaging the ground in use, wherein the upper layer comprises two or more materials of different compressive resistances, or densities, arranged as a frontal/toe region, an arch region and a heel region, the sole is arranged such that application of a user's weight, during use, causes instability in at least one portion of the upper layer, which requires balance correction by a user.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: October 23, 2018
    Assignee: FITFLOP LIMITED
    Inventors: Marcia Kilgore, David Cook
  • ITEM OF FOOTWEAR
    Publication number: 20160331079
    Abstract: An item of footwear for increasing leg-muscle and/or lower-abdominal-/back-muscle tone comprising: a securing means for securing the item of footwear to a foot of a user; and a sole comprising at least an upper layer, for engaging a foot of a user in use or a further upper layer, and a lower layer, for engaging the ground in use, wherein the upper layer comprises two or more materials of different compressive resistances, or densities, arranged as a frontal/toe region, an arch region and a heel region, the sole is arranged such that application of a user's weight, during use, causes instability in at least one portion of the upper layer, which requires balance correction by a user.
    Type: Application
    Filed: July 29, 2016
    Publication date: November 17, 2016
    Applicant: FitFlop Limited
    Inventors: Marcia Kilgore, David Cook
  • ITEM OF FOOTWEAR
    Publication number: 20100299957
    Abstract: An item of footwear for increasing leg-muscle and/or lower-abdominal-/back-muscle tone comprising: a securing means for securing the item of footwear to a foot of a user; and a sole comprising at least an upper layer, for engaging a foot of a user in use or a further upper layer, and a lower layer, for engaging the ground in use, wherein the upper layer comprises two or more materials of different compressive resistances, or densities, arranged as a frontal/toe region, an arch region and a heel region, the sole is arranged such that application of a user's weight, during use, causes instability in at least one portion of the upper layer, which requires balance correction by a user.
    Type: Application
    Filed: April 28, 2008
    Publication date: December 2, 2010
    Inventors: Marcia Kilgore, David Cook