H04R 1/2811
For loudspeaker transducers
Official title: {for loudspeaker transducers}
H04R1/2811 (For loudspeaker transducers) appears on 909 US grants and 1,116 published applications in this corpus.
Search patents in H04R- Granted patents
- 909
- Published applications
- 1,116
- Assignees
- 354
- Inventors
- 1,714
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 6 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 19 | 2 |
| 2002 | 4 | 3 |
| 2003 | 2 | 1 |
| 2004 | 5 | 1 |
| 2005 | 3 | 6 |
| 2006 | 1 | 6 |
| 2007 | 4 | 5 |
| 2008 | 1 | 7 |
| 2009 | 4 | 6 |
| 2010 | 1 | 8 |
| 2011 | 4 | 7 |
| 2012 | 7 | 22 |
| 2013 | 12 | 26 |
| 2014 | 19 | 24 |
| 2015 | 18 | 36 |
| 2016 | 34 | 43 |
| 2017 | 47 | 61 |
| 2018 | 61 | 86 |
| 2019 | 90 | 74 |
| 2020 | 70 | 86 |
| 2021 | 60 | 100 |
| 2022 | 75 | 76 |
| 2023 | 79 | 115 |
| 2024 | 88 | 143 |
| 2025 | 97 | 69 |
| 2026 | 72 | 103 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents