The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 03, 2026

Filed:

Apr. 07, 2023
Applicants:

Delstar Technologies, Inc., Middletown, DE (US);

Lms Technologies, Inc., Bloomington, MN (US);

Inventors:

Andrew G. Platt, Middletown, DE (US);

Lenny Pompeo, Middletown, DE (US);

Joel Trojnar, Smyrna, PA (US);

Assignees:

DelStar Technologies, Inc., Alpharetta, GA (US);

LMS Technologies, Inc., Bloomington, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 46/62 (2022.01); B01D 39/16 (2006.01); B01D 39/20 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B32B 7/12 (2006.01); B32B 37/12 (2006.01); B32B 37/24 (2006.01);
U.S. Cl.
CPC ...
B01D 39/163 (2013.01); B01D 39/2024 (2013.01); B01D 46/62 (2022.01); B32B 5/022 (2013.01); B32B 5/269 (2021.05); B32B 7/12 (2013.01); B32B 37/12 (2013.01); B32B 37/24 (2013.01); B01D 2239/0216 (2013.01); B01D 2239/025 (2013.01); B01D 2239/0258 (2013.01); B01D 2239/0407 (2013.01); B01D 2239/0464 (2013.01); B01D 2239/0618 (2013.01); B01D 2239/0622 (2013.01); B01D 2239/0627 (2013.01); B01D 2239/0681 (2013.01); B01D 2239/083 (2013.01); B01D 2239/10 (2013.01); B01D 2239/1233 (2013.01); B01D 2239/1241 (2013.01); B01D 2239/1258 (2013.01); B32B 2037/243 (2013.01); B32B 2250/02 (2013.01); B32B 2250/20 (2013.01); B32B 2260/023 (2013.01); B32B 2260/04 (2013.01); B32B 2262/0253 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/101 (2013.01); B32B 2262/124 (2021.05); B32B 2262/16 (2021.05); B32B 2305/18 (2013.01); B32B 2305/30 (2013.01); B32B 2307/724 (2013.01);
Abstract

Filter media and filters are provided that include at least two layers and a plurality of nanoparticles dispersed in depth within at least one of the layers. A gas filter comprises a first layer of fibers, a second layer of fibers bonded to the first layer and a plurality of nanoparticles incorporated into the first layer. The nanoparticles increase the overall surface area within the filter, which increases its filtration efficiency and allows for the capture of submicron contaminants without significantly compromising other factors, such as pressure drop (i.e., air flow) through the filter. In addition, the filters disclosed herein are capable of withstanding rigorous conditioning, which allows the filter to achieve the same level of filtration performance throughout the lifetime of the filter. Systems, devices and methods are also provided for manufacturing such filters.


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