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:
Aug. 11, 2026

Filed:

Oct. 04, 2022
Applicant:

Nxtnano, Llc, Lenexa, KS (US);

Inventors:

Phillip Ross Burkholder, Tulsa, OK (US);

Andrew Albert Lander Mcdowell, Bucyrus, KS (US);

Alan Smithies, Overland Park, KS (US);

Assignee:

NxtNano, LLC, Lenexa, KS (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/08 (2006.01); B01D 39/16 (2006.01); B01D 46/54 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B32B 7/12 (2006.01); B01D 39/18 (2006.01);
U.S. Cl.
CPC ...
B01D 39/083 (2013.01); B01D 39/163 (2013.01); B01D 46/546 (2013.01); B32B 5/022 (2013.01); B32B 5/028 (2013.01); B32B 5/265 (2021.05); B32B 5/273 (2021.05); B32B 7/12 (2013.01); B01D 39/18 (2013.01); B01D 2239/025 (2013.01); B01D 2239/0266 (2013.01); B01D 2239/0618 (2013.01); B01D 2239/0631 (2013.01); B01D 2239/0654 (2013.01); B01D 2239/0681 (2013.01); B01D 2239/1233 (2013.01); B01D 2239/1258 (2013.01); B01D 2239/1291 (2013.01); B32B 2250/20 (2013.01); B32B 2262/0223 (2013.01); B32B 2262/0276 (2013.01); B32B 2262/062 (2013.01); B32B 2262/16 (2021.05); B32B 2307/7163 (2013.01); B32B 2307/718 (2013.01); B32B 2307/724 (2013.01);
Abstract

In order to address the sustainability and environmental issues associated with conventional HVAC filters, inventive HVAC filters have been developed that are completely biodegradable and compostable and exhibit Minimum Efficiency Reporting Value (MERV) ratings that are superior to conventional HVAC filters. More particularly, it has been discovered that biodegradable electrospun nanofibers can be used to produce biodegradable HVAC filters that exhibit superior filtration performance relative to conventional HVAC filters produced from polypropylene electrostatic media or triboelectric nonwoven media.


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