Patents by Inventor W Allan WINGFIELD

W Allan WINGFIELD 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).

  • Extruded mat
    Patent number: 11821214
    Abstract: A drainage component having a continuous, extruded mat having an upper face and a lower face. The mat includes a plurality of patterned three-dimensional structures, each structure spaced from all adjacent structures, and the plurality of patterned three-dimensional structures are provided in a plurality of linear rows or columns in a first direction.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: November 21, 2023
    Assignees: LOW & BONAR INC., E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Lori C. Hascher, James E. Mathis, W. Allan Wingfield, Wazir Nobbee, Rupa Kibbe
  • EXTRUDED MAT
    Publication number: 20210355687
    Abstract: A drainage component having a continuous, extruded mat having an upper face and a lower face. The mat includes a plurality of patterned three-dimensional structures, each structure spaced from all adjacent structures, and the plurality of patterned three-dimensional structures are provided in a plurality of linear rows or columns in a first direction.
    Type: Application
    Filed: July 30, 2021
    Publication date: November 18, 2021
    Applicants: LOW & BONAR INC., E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Lori C. HASCHER, James E. MATHIS, W. Allan WINGFIELD, Wazir NOBBEE, Rupa KIBBE
  • Extruded mat
    Patent number: 11105099
    Abstract: A drainage component having a continuous, extruded mat having an upper face and a lower face. The mat includes a plurality of patterned three-dimensional structures, each structure spaced from all adjacent structures, and the plurality of patterned three-dimensional structures are provided in a plurality of linear rows or columns in a first direction.
    Type: Grant
    Filed: January 4, 2019
    Date of Patent: August 31, 2021
    Assignees: LOW & BONAR INC., E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Lori C. Hascher, James E. Mathis, W Allan Wingfield, Wazir Nobbee, Rupa Kibbe
  • EXTRUDED MAT
    Publication number: 20190211565
    Abstract: A drainage component having a continuous, extruded mat having an upper face and a lower face. The mat includes a plurality of patterned three-dimensional structures, each structure spaced from all adjacent structures, and the plurality of patterned three-dimensional structures are provided in a plurality of linear rows or columns in a first direction.
    Type: Application
    Filed: January 4, 2019
    Publication date: July 11, 2019
    Applicants: LOW & BONAR INC., E.I. du Pont de Nemours and Company
    Inventors: Lori C. HASCHER, James E. MATHIS, W Allan WINGFIELD, Wazir NOBBEE, Rupa KIBBE