H04R 2499/13
Acoustic transducers and sound field adaptation in vehicles
H04R2499/13 (Acoustic transducers and sound field adaptation in vehicles) appears on 3,098 US grants and 3,820 published applications in this corpus.
Search patents in H04R- Granted patents
- 3,098
- Published applications
- 3,820
- Assignees
- 887
- Inventors
- 5,768
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 10 | 0 |
| 1991 | 9 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 12 | 0 |
| 1998 | 9 | 0 |
| 1999 | 13 | 0 |
| 2000 | 9 | 0 |
| 2001 | 25 | 7 |
| 2002 | 19 | 34 |
| 2003 | 20 | 45 |
| 2004 | 21 | 62 |
| 2005 | 25 | 58 |
| 2006 | 36 | 52 |
| 2007 | 41 | 65 |
| 2008 | 30 | 66 |
| 2009 | 22 | 72 |
| 2010 | 37 | 58 |
| 2011 | 56 | 77 |
| 2012 | 110 | 70 |
| 2013 | 51 | 103 |
| 2014 | 62 | 95 |
| 2015 | 90 | 153 |
| 2016 | 152 | 171 |
| 2017 | 187 | 183 |
| 2018 | 211 | 253 |
| 2019 | 225 | 228 |
| 2020 | 224 | 263 |
| 2021 | 208 | 278 |
| 2022 | 230 | 307 |
| 2023 | 233 | 290 |
| 2024 | 234 | 276 |
| 2025 | 230 | 308 |
| 2026 | 179 | 246 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sound apparatus and vehicular apparatus including the same6 Oct 2026US 12,756,963 B2LG Display Co., Ltd.
- Information presentation device29 Sep 2026US 12,749,351 B2Subaru Corporation
- In-vehicle device, control method, and recording medium29 Sep 2026US 12,749,403 B2Toyota Jidosha Kabushiki Kaisha
- Vehicle call system based on active noise control and method therefor22 Sep 2026US 12,744,025 B2Hyundai Mobis Co., Ltd.
- Unified post-filter for an audio filter system for vehicle22 Sep 2026US 12,744,048 B2GM Global Technology Operations LLC
- Exterior communication system for mobility vehicle8 Oct 2026US 2026/0313278 A1Hyundai Motor Company
- Audio adjustments in a vehicle based on user tracking8 Oct 2026US 2026/0313291 A1Harman Becker Automotive Systems GmbH
- Acoustic adjustment assistance device, acoustic adjustment device, acoustic adjustment assistance method, and non-transitory recordable medium1 Oct 2026US 2026/0304064 A1Asahi Kasei Microdevices Corporation
- Vehicle horn24 Sep 2026US 2026/0285432 A1Indian Motorcycle International, LLC
- Method and system for recognizing a squeal noise of a vehicle24 Sep 2026US 2026/0290092 A1Hyundai Motor Company
Most cited
By later US patents
- Electroactive polymer devices1,577US 6,545,384 B1SRI International · 2003
- Electroactive polymer electrodes1,515US 6,583,533 B2SRI International · 2003
- Rearview mirror assembly with added feature modular display915US 6,329,925 B1Donnelly Corporation · 2001
- Accessory module for vehicle659US 6,243,003 B1Donnelly Corporation · 2001
- Rearview mirror and accessory mount for vehicles532US 4,930,742 ADonnelly Corporation · 1990