H04H 20/33
By plural channels
Official title: by plural channels
H04H20/33 (By plural channels) appears on 416 US grants and 311 published applications in this corpus.
Search patents in H04H- Granted patents
- 416
- Published applications
- 311
- Assignees
- 184
- Inventors
- 656
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 13 | 0 |
| 1996 | 21 | 0 |
| 1997 | 14 | 0 |
| 1998 | 23 | 0 |
| 1999 | 16 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 1 |
| 2002 | 8 | 9 |
| 2003 | 6 | 9 |
| 2004 | 4 | 11 |
| 2005 | 7 | 19 |
| 2006 | 5 | 22 |
| 2007 | 9 | 19 |
| 2008 | 12 | 18 |
| 2009 | 12 | 32 |
| 2010 | 11 | 14 |
| 2011 | 17 | 13 |
| 2012 | 16 | 13 |
| 2013 | 15 | 11 |
| 2014 | 18 | 10 |
| 2015 | 25 | 25 |
| 2016 | 16 | 18 |
| 2017 | 21 | 19 |
| 2018 | 19 | 9 |
| 2019 | 9 | 11 |
| 2020 | 10 | 8 |
| 2021 | 10 | 5 |
| 2022 | 10 | 6 |
| 2023 | 5 | 3 |
| 2024 | 4 | 3 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Broadcast receiving apparatus and transmission method of digital broadcast modulation wave21 Apr 2026US 12,609,779 B2Maxell, Ltd.
- Reception device4 Mar 2025US 12,244,405 B2Panasonic Automotive Systems Co., Ltd.
- Method for improving audio acquisition time by nascent signal caching19 Nov 2024US 12,149,335 B2Inntot Technologies Private Limited
- Out of band frequency conversion using demodulation2 Jul 2024US 12,028,202 B2ARRIS Enterprises LLC
- Transmitter and/or receiver for transmitting and/or receiving radio information signals27 Feb 2024US 11,916,655 B2Institut Fur Rundfunktechnik GmbH
- Broadcast receiving apparatus and transmission method of digital broadcast modulation wave23 Jul 2026US 2026/0213862 A1Maxell, Ltd.
- System and methods to capture and stream multiple radio channels3 Jul 2025US 2025/0219750 A1
- Encoding and decoding of video including a plurality of toggleable overlays5 Jun 2025US 2025/0184500 A1Axis AB
- Broadcast receiving apparatus and transmission method of digital broadcast modulation wave29 Aug 2024US 2024/0291579 A1Maxell, Ltd.
- Method for improving audio acquisition time by nascent signal caching8 Aug 2024US 2024/0267142 A1Inntot Technologies Private Limited
Most cited
By later US patents
- Communication system and method with demographically or psychographically defined audiences878US 5,446,919 A1995
- Arrangement for and method of processing data, especially for identifying and verifying airing of television broadcast programs497US 5,200,822 ANational Broadcasting Company, Inc. · 1993
- Apparatus and methods for accessing information relating to radio and television programs493US 5,703,795 A1997
- Shared use video processing systems for distributing program signals from multiplexed digitized information signals405US 5,784,683 ABell Atlantic Network Services, Inc. · 1998
- Simulcasting digital video programs for broadcast and interactive services353US 5,729,549 ABell Atlantic Network Services, Inc. · 1998