Patent · US Active

Fragrance dispenser for air filter

US10744222B2 · kind B2 · utility

1Cited by

22References

20Claims

0Family size

Assignee

3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

Kannan Seshadri · Woodbury, US
Neeraj Sharma · Woodbury, US
Le'Bron K. Patterson · Maplewood, US
Jeffrey M. Imsande · Menomonie, US
Nicolas A. Echeverri · Woodbury, US
Joon Chatterjee · Bloomington, US

Key dates

Filing date	Jan 9, 2019
Grant date	Aug 18, 2020
Priority date	—
Expiry date	Apr 11, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2279/50
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A fragrance dispenser for emitting fragrance into an airstream impinging on an air filter, the dispenser having a receptacle with an open end that faces toward the air filter and that has a porous diffuser layer occlusively overlying the open end of the receptacle.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.