Patents
US 11680731 B2: Sound reduction grille assembly
- Granted
- 2023-06-20
- Filed
- 2022-05-05 application 17737153
- Type
- Utility · 30 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A ventilation assembly and methods of forming the same includes a ventilation grille having reducing acoustic bodies configured to attenuate sound of the ventilation assembly. Arrangement of the acoustic bodies can form phononic crystal to attenuate sound and can be tuned to desired sound bands to reduce sounds.
Source: PVGPATDIS, file of 2026-04-10 (ipg230620.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Broan-NuTone LLC 190 patents | US company or organization | Hartford, WI | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Patrick Bouche | Sherbrooke, CA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Raymond Panneton | Sherbrooke, CA | 3 | PVGPATDIS, file of 2026-04-10 | |
| Brent Lillesand | Milwaukee, WI | 6 | PVGPATDIS, file of 2026-04-10 | |
| Jean-Bernard Piaud | Drummondville, CA | 4 | PVGPATDIS, file of 2026-04-10 | |
| Rick Sinur | Hartford, WI | 6 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F24F | Air-conditioning; air-humidification; ventilation; use of air currents for screening | F24F13/24 | PVGPATDIS, file of 2026-04-10 |
| G10K | Sound-producing devices; methods or devices for protecting against, or for damping, noise or other acoustic waves in general; acoustics not otherwise provided for | G10K11/162 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2025-11-24 | Assignment Assignment of assignor's interest | BOUCHE, PATRICK signed 2021-05-05 PANNETON, RAYMOND signed 2021-05-01 LILLESAND, BRENT signed 2021-05-03 PIAUD, JEAN-BERNARD signed 2021-04-30 SINUR, RICK signed 2021-04-30 | BROAN-NUTONE LLC HARTFORD, WI | 73012/763 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.