Patents by Inventor John Frederick Steffen

John Frederick Steffen 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).

  • Method of preparing a crimped fiber
    Patent number: 11598028
    Abstract: Multi-component fibers or filaments that are ribbon shaped are provided having polymer components positioned in a side-by-side fashion. For example, the multi-component fibers may be bicomponent fibers having ribbon shape. The polymer components of the fibers are selected to have differential shrinkage behavior. Nonwovens are also provided that are manufactured from such ribbon shaped multi-component fibers or filaments.
    Type: Grant
    Filed: October 3, 2019
    Date of Patent: March 7, 2023
    Assignee: AVINTIV Specialty Materials Inc.
    Inventors: John Frederick Steffen, Ralph A. Moody, III
  • Self-Crimped Ribbon Fiber and Nonwovens Manufactured Therefrom
    Publication number: 20200032429
    Abstract: Multi-component fibers or filaments that are ribbon shaped are provided having polymer components positioned in a side-by-side fashion. For example, the multi-component fibers may be bicomponent fibers having ribbon shape. The polymer components of the fibers are selected to have differential shrinkage behavior. Nonwovens are also provided that are manufactured from such ribbon shaped multi-component fibers or filaments.
    Type: Application
    Filed: October 3, 2019
    Publication date: January 30, 2020
    Inventors: John Frederick Steffen, Ralph A. Moody, III
  • Self-crimped ribbon fiber and nonwovens manufactured therefrom
    Patent number: 10494744
    Abstract: Multi-component fibers or filaments that are ribbon shaped are provided having polymer components positioned in a side-by-side fashion. For example, the multi-component fibers may be bicomponent fibers having ribbon shape. The polymer components of the fibers are selected to have differential shrinkage behavior. Nonwovens are also provided that are manufactured from such ribbon shaped multi-component fibers or filaments.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: December 3, 2019
    Assignee: AVINTIV Specialty Materials, Inc.
    Inventors: John Frederick Steffen, Ralph A. Moody, III
  • Self-Crimped Ribbon Fiber and Nonwovens Manufactured Therefrom
    Publication number: 20160040323
    Abstract: Multi-component fibers or filaments that are ribbon shaped are provided having polymer components positioned in a side-by-side fashion. For example, the multi-component fibers may be bicomponent fibers having ribbon shape. The polymer components of the fibers are selected to have differential shrinkage behavior. Nonwovens are also provided that are manufactured from such ribbon shaped multi-component fibers or filaments.
    Type: Application
    Filed: August 7, 2015
    Publication date: February 11, 2016
    Applicant: AVINTIV SPECIALTY MATERIALS INC.
    Inventors: John Frederick Steffen, Ralph A. Moody, III
  • Nonwoven Having High Microbial Kill Rate And High Efficacy And Articles And Uses Therefrom
    Publication number: 20150275404
    Abstract: A fiber defined by a surface having a concentration of antimicrobial and a center having another concentration of antimicrobial is provided. The concentration of antimicrobial at the surface of the fiber is greater than the concentration of antimicrobial at the center of the fiber. Nonwovens manufactured from the fiber are also provided. The antimicrobial may include an antimicrobial heat labile component in conjunction with a carrier.
    Type: Application
    Filed: March 25, 2015
    Publication date: October 1, 2015
    Applicants: POLYMER GROUP, INC., TRIOCIDE, INC.
    Inventors: Sven Krister Erlandsson, Frank M. Fosco, JR., Ralph A. Moody, III, Pierre D. Grondin, John Frederick Steffen
  • Loop material for improved attachment to disposable garments
    Patent number: 5716470
    Abstract: Disclosed is a process for producing a loop material suitable for use on a disposable garment. The process includes the following steps. Forming a woven loop material having a lubricating material thereon. The lubricating material is present on the woven loop material in an amount effective to assist in the formation of the woven loop material. The woven loop material is rinsed with a liquid to form a rinsed loop material. The rinsing process causes the amount of lubricating material on said woven loop material to be reduced. Finally, the rinsed loop material is attached to the disposable garment. A disposable absorbent garment including the rinsed loop material is also described.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: February 10, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Tom Russell Belau, Mark Michael Mleziva, John Frederick Steffen