Patents by Inventor Nhat Ha Thi Nguyen

Nhat Ha Thi Nguyen 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).

  • PLEATED AIR FILTER WITH BRIDGING FILAMENTS AND CONTINUOUS-CONTACT FILAMENTS
    Publication number: 20210229022
    Abstract: A pleated air filter media is provided. The pleated air filter media comprises a plurality of upstream linear bridging filaments that are extrusion-bonded to at least some of a plurality of upstream pleat tips of a fibrous web, and a plurality of downstream continuous-contact filaments that are extrusion-bonded to a downstream face of the fibrous web. Methods of making and using the same are also provided.
    Type: Application
    Filed: July 30, 2019
    Publication date: July 29, 2021
    Inventors: Zhiqun Zhang, Nhat Ha Thi Nguyen, Jimmy M. Le, Glen O. Gregerson, Bryan L. Gerhardt, Philip D. Eitzman
  • Respirator including polymeric netting and method of forming same
    Patent number: 11033763
    Abstract: One or more embodiments of a respirator that includes a polymeric netting is disclosed. The respirator can include a mask body including a perimeter, a harness attached to the mask body, and a face seal disposed adjacent at least a portion of the perimeter of the mask body. In one or more embodiments, the face seal includes a polymeric netting including polymeric ribbons and polymeric strands, where each of the polymeric ribbons and strands having a length, width, and height, where the length is the longest dimension, the width is the shortest dimension, and the height is the dimension transverse to the length and the width. The polymeric ribbons have a height-to-width aspect ratio of at least 5 to 1, a major surface that is intermittently bonded to only one polymeric strand, and a height that is at least two times greater than a height of the one polymeric strand.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: June 15, 2021
    Assignee: 3M Innovative Properties Company
    Inventors: Nhat Ha Thi Nguyen, Thomas J. Xue, Seyed A. Angadjivand, Ronald W. Ausen, William J. Kopecky, Mark T. Gibson, Olof N. Hansson, Joseph P. Kronzer
  • Respirator Including Polymeric Netting And Method of Forming Same
    Publication number: 20170274228
    Abstract: One or more embodiments of a respirator that includes a polymeric netting is disclosed. The respirator can include a mask body including a perimeter, a harness attached to the mask body, and a face seal disposed adjacent at least a portion of the perimeter of the mask body. In one or more embodiments, the face seal includes a polymeric netting including polymeric ribbons and polymeric strands, where each of the polymeric ribbons and strands having a length, width, and height, where the length is the longest dimension, the width is the shortest dimension, and the height is the dimension transverse to the length and the width. The polymeric ribbons have a height-to-width aspect ratio of at least 5 to 1, a major surface that is intermittently bonded to only one polymeric strand, and a height that is at least two times greater than a height of the one polymeric strand.
    Type: Application
    Filed: August 12, 2015
    Publication date: September 28, 2017
    Inventors: Nhat Ha Thi Nguyen, Thomas J. Xue, Seyed A. Angadjivand, Ronald W. Ausen, William J. Kopecky, Mark T. Gibson, Olof N. Hansson, Joseph P. Kronzer