IP Library › Granted Patent US 12,507,817
Granted Patent B2
US 12,507,817 · App. 17/960,104 · Granted Dec 30, 2025

Infection control filter label

Inventors: William J. Purdy (Bedford, NY); Robert Purdy (Bedford, NY)
Assignee: Greenwood Marketing, LLC
A47G9/007A47C31/007A47G2009/001A47G9/02A47G9/0207A47G9/10B01D46/10B01D2239/0421B01D2257/91B01D2279/35
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Quick Facts
Patent No.
US 12,507,817
App. No.
17/960,104
Granted
Dec 30, 2025
Kind
B2
Abstract

An infection control filter label includes a frame and a filter membrane that covers a window through the frame. The frame may be removably secured to a cover for an item, such as a cushion (e.g., a pillow, a positioner, a mattress topper, a mattress, a seat cushion, etc.), bedding (e.g., a duvet, etc.), or the like to provide a sealed cover for the item. The sealed cover may be impermeable, with the infection control filter label limiting the passage of dust and microorganisms (e.g., fungi, bacteria, mold spores, etc.) from passing therethrough. Thus, the sealed cover may protect its contents from external factors (e.g., sick individuals, etc.) while protecting the environment outside the sealed cover from the contents of the sealed cover. Information about the item may be provided on the frame; for example, by printing, writing, or the like.

Claims (23)

1 . A sealed cover for a cushion, comprising:

an impermeable material defining an exterior of a cover and an interior of the cover and meeting requirements for at least a level three classification under ANSI/AAMI PB70 liquid barrier performance specifications;

an opening extending through the impermeable material to enable communication between the exterior and the interior; and

a filter removably positioned over the opening to seal the cover and including:

a frame with a window therethrough, the frame including a lower surface carrying a releasable adhesive material securing the frame to the impermeable material and an upper surface comprising a label; and

a filter membrane extending across the window, the filter membrane and the releasable adhesive material providing an antimicrobial barrier over the opening.

2 . The sealed cover of claim 1 , wherein the filter membrane and the releasable adhesive material further provide a water-resistant barrier to the opening.

3 . The sealed cover of claim 1 , wherein the label bears customized information about the cushion.

4 . The sealed cover of claim 1 , wherein the label prevents dust from entering into the interior of the cover.

5 . The sealed cover of claim 1 , wherein the cover meets requirements for a level four classification under the ANSI/AAMI PB70 liquid barrier performance specifications.

6 . The sealed cover of claim 1 , further comprising:

at least one impermeable seam.

7 . A cushion, comprising:

a sealed cover with an exterior and an interior and including:

an impermeable material defining the exterior and the interior and meeting requirements for at least a level three classification under ANSI/AAMI PB70 liquid barrier performance specifications;

an opening extending through the impermeable material to enable communication between the exterior and the interior; and

a filter removably positioned over the opening and including:

a frame with a window therethrough, the frame including a lower surface carrying a releasable adhesive material securing the frame to the impermeable material of the sealed cover and an upper surface comprising a label; and

a filter membrane extending across the window, the filter membrane and the releasable adhesive material providing an antimicrobial barrier over the opening of the sealed cover; and

a cushioning element within the interior of the sealed cover.

8 . The cushion of claim 7 , wherein the cushioning element comprises a pillow, a mattress topper, a mattress, or a seat cushion.

9 . The cushion of claim 7 , wherein the filter membrane and the releasable adhesive material further prevent dust particles from entering into the interior of the sealed cushion.

10 . The cushion of claim 7 , wherein the cover meets requirements for a level four classification under the ANSI/AAMI PB70 liquid barrier performance specifications.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 3, 2026
From: GREENWOOD MARKETING, LLC
To: STILLWATER, LLC
Reel/Frame 075902/0817 →
Continuity (2)
Provisional Application 63251998 · Oct 4, 2021
Related Publication 20230106871A1 · Apr 6, 2023
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