F02M 35/1294
Amplifying, modulating, tuning or transmitting sound
Official title: {Amplifying, modulating, tuning or transmitting sound, e.g. directing sound to the passenger cabin; Sound modulation}
F02M35/1294 (Amplifying, modulating, tuning or transmitting sound) appears on 62 US grants and 71 published applications in this corpus.
Search patents in F02M- Granted patents
- 62
- Published applications
- 71
- Assignees
- 38
- Inventors
- 159
- Latest grant
- 2 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 2 | 0 |
| 2005 | 1 | 3 |
| 2006 | 0 | 4 |
| 2007 | 0 | 8 |
| 2008 | 4 | 0 |
| 2009 | 2 | 4 |
| 2010 | 3 | 2 |
| 2011 | 2 | 4 |
| 2012 | 2 | 0 |
| 2013 | 0 | 7 |
| 2014 | 6 | 4 |
| 2015 | 2 | 4 |
| 2016 | 9 | 5 |
| 2017 | 5 | 3 |
| 2018 | 4 | 7 |
| 2019 | 5 | 3 |
| 2020 | 3 | 3 |
| 2021 | 4 | 1 |
| 2022 | 2 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Engine intake sound amplifier2 Jan 2024US 11,859,582 B2Mazda Motor Corporation
- Engine intake system10 Oct 2023US 11,781,510 B2Mazda Motor Corporation
- Engine intake system7 Mar 2023US 11,598,298 B2Mazda Motor Corporation
- Apparatus for amplifying sound waves1 Nov 2022US 11,486,342 B2Hyundai Motor Company
- Sound enhancing system22 Mar 2022US 11,280,303 B2Ford Global Technologies, LLC
- Motor vehicle with improved sound conveyor in the passenger compartment1 Oct 2026US 2026/0298184 A1Ferrari S.P. A.
- Intake noise amplifying system of internal combustion engine7 Aug 2025US 2025/0250954 A1Mazda Motor Corporation
- Engine intake sound amplifier15 Jun 2023US 2023/0184201 A1Mazda Motor Corporation
- Engine intake system1 Dec 2022US 2022/0381210 A1Mazda Motor Corporation
- Engine intake system1 Dec 2022US 2022/0381211 A1Mazda Motor Corporation
Most cited
By later US patents
- Apparatus and method for actively reducing noise in vehicular passengers compartment40US 5,850,458 AUnisia Jecs Corporation · 1998
- Outboard motor with sound enhancement device and method for modifying sounds produced by air intake system of an outboard motor37US 9,359,981 B1Brunswick Corporation · 2016
- Sound increase apparatus25US 7,353,791 B2Nissan Motor Co., Ltd. · 2008
- Sound transmission device for a motor vehicle23US 6,600,408 B1Bayerische Motorenwerke Aktiengesellschaft · 2003
- Intake device of internal combustion engine23US 7,448,353 B2Mahle Filter Systems Japan Corporation · 2008