Patents by Inventor Jacob J. Thelen

Jacob J. Thelen 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).

  • Air-filter media comprising a relofted spunbonded web, and methods of making and using
    Patent number: 11839845
    Abstract: A relofted, spunbonded nonwoven web exhibiting a solidity of from less than 8.0%, to at least 3.0%, and exhibiting a Quality Factor of at least 0.30. Methods of making a relofted web; and, methods of using a relofted web as an air-filtration web, e.g. as a filter media or a layer thereof.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: December 12, 2023
    Assignee: 3M Innovative Properties Company
    Inventors: Zhiqun Zhang, Edward Keith Willis, Jacob J. Thelen, Daniel E. Johnson, Bryan L. Gerhardt, Michael R. Berrigan
  • Spunbonded Air-Filtration Web
    Publication number: 20220266180
    Abstract: A single-layer spunbonded air-filtration web including meltspun autogenously bonded electret fibers with an Actual Fiber Diameter of from 3.0 microns to 15 microns. The air-filtration web exhibits a ratio of mean flow pore size to pore size range of from 0.55 to 2.5. Also disclosed are methods of making such webs, and methods of using such webs to perform air filtration.
    Type: Application
    Filed: August 12, 2020
    Publication date: August 25, 2022
    Inventors: John D. Stelter, Zachary J. Becker, Michael R. Berrigan, Alexander P. Flage, Andrew R. Fox, Bryan L. Gerhardt, Himanshu Jasuja, William J. Kopecky, Patrick J. Sager, Samatha D Smith, Jacob J. Thelen, Kent B. Willgohs
  • Spunbonded Air-Filtration Web
    Publication number: 20220266181
    Abstract: A single-layer spunbonded air-filtration web including meltspun autogenously bonded electret fibers with an Actual Fiber Diameter of from 3.0 microns to 9.0 microns. The air-filtration web exhibits a mean flow pore size of from 8.0 to 19 microns and exhibits a ratio of mean flow pore size to pore size range of from 0.55 to 2.5. Also disclosed are methods of making such webs, and methods of using such webs to perform air filtration.
    Type: Application
    Filed: August 12, 2020
    Publication date: August 25, 2022
    Inventors: Himanshu Jasuja, Kent B. Willgohs, Jacob J. Thelen, John D. Stelter, Samatha D. Smith, Patrick J. Sager, William J. Kopecky, Bryan L Gerhardt, Andrew R. Fox, Alexander P. Flage, Michael R. Berrigan, Zachary J. Becker
  • AIR-FILTER MEDIA COMPRISING A RELOFTED SPUNBONDED WEB, AND METHODS OF MAKING AND USING
    Publication number: 20210229012
    Abstract: A relofted, spunbonded nonwoven web exhibiting a solidity of from less than 8.0%, to at least 3.0%, and exhibiting a Quality Factor of at least 0.30. Methods of making a relofted web; and, methods of using a relofted web as an air-filtration web, e.g. as a filter media or a layer thereof.
    Type: Application
    Filed: July 19, 2019
    Publication date: July 29, 2021
    Inventors: Zhiqun Zhang, Edward Keith Willis, Jacob J. Thelen, Daniel E. Johnson, Bryan L. Gerhardt, Michael R. Berrigan
  • SEMI-CONTINUOUS FILAMENTS INCLUDING A CRYSTALLINE POLYOLEFIN AND A HYDROCARBON TACKIFIER RESIN, AND PROCESS FOR MAKING SAME
    Publication number: 20200208314
    Abstract: Nonwoven webs including one or more semi-continuous filaments made of a mixture including from about 50% w/w to about 99% w/w of at least one crystalline polyolefin (co)polymer, and from about 1% w/w to about 40% w/w of at least one hydrocarbon tackifier resin. The at least one semi-continuous filament exhibits molecular orientation, and at least one of the crystalline polyolefin (co)polymer or the nonwoven web exhibits a Heat of Fusion measured using Differential Scanning Calorimetry of greater than 50 Joules/g. A process for making the semi-continuous filaments and nonwoven webs is also disclosed.
    Type: Application
    Filed: July 30, 2018
    Publication date: July 2, 2020
    Inventors: Eugene G. Joseph, Saurabh Batra, Michael R. Berrigan, John D. Stelter, Jacob J. Thelen, Zackary J. Becker, Liyun Ren, Sachin Talwar, Michael D. Romano