H04H 20/28
Arrangements for simultaneous broadcast of plural pieces of information
H04H20/28 (Arrangements for simultaneous broadcast of plural pieces of information) appears on 1,816 US grants and 1,537 published applications in this corpus.
Search patents in H04H- Granted patents
- 1,816
- Published applications
- 1,537
- Assignees
- 566
- Inventors
- 2,605
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 10 | 0 |
| 1988 | 10 | 0 |
| 1989 | 8 | 0 |
| 1990 | 7 | 0 |
| 1991 | 11 | 0 |
| 1992 | 13 | 0 |
| 1993 | 15 | 0 |
| 1994 | 20 | 0 |
| 1995 | 36 | 0 |
| 1996 | 54 | 0 |
| 1997 | 35 | 0 |
| 1998 | 69 | 0 |
| 1999 | 63 | 0 |
| 2000 | 35 | 0 |
| 2001 | 33 | 28 |
| 2002 | 43 | 80 |
| 2003 | 42 | 95 |
| 2004 | 40 | 106 |
| 2005 | 45 | 99 |
| 2006 | 53 | 91 |
| 2007 | 57 | 102 |
| 2008 | 62 | 80 |
| 2009 | 63 | 123 |
| 2010 | 90 | 99 |
| 2011 | 108 | 76 |
| 2012 | 109 | 66 |
| 2013 | 91 | 47 |
| 2014 | 89 | 45 |
| 2015 | 72 | 75 |
| 2016 | 56 | 56 |
| 2017 | 63 | 45 |
| 2018 | 53 | 47 |
| 2019 | 44 | 44 |
| 2020 | 51 | 34 |
| 2021 | 40 | 23 |
| 2022 | 36 | 25 |
| 2023 | 27 | 15 |
| 2024 | 14 | 17 |
| 2025 | 13 | 12 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Receiver and transceiver30 Jun 2026US 12,671,509 B2Uniden Holdings Corporation
- Information processing apparatus, information processing method, and program2 Jun 2026US 12,647,640 B2Sony Group Corporation
- Broadcast receiving apparatus and portable information terminal2 Jun 2026US 12,647,652 B2Maxell, Ltd.
- Broadcast receiving apparatus and transmission method of digital broadcast modulation wave21 Apr 2026US 12,609,779 B2Maxell, Ltd.
- Transmission device, transmission method, reception device, and reception method17 Mar 2026US 12,580,870 B2Saturn Licensing LLC
- Broadcast receiving apparatus and portable information terminal8 Oct 2026US 2026/0313200 A1Maxell, Ltd.
- Transmission device, transmission method, reception device, and reception method27 Aug 2026US 2026/0254764 A1Saturn Licensing LLC
- Shoe with Knit Upper Having Thermoplastic Yarn Regions13 Aug 2026US 2026/0232066 A1Cole Haan LLC
- Broadcast receiving apparatus and transmission method of digital broadcast modulation wave23 Jul 2026US 2026/0213862 A1Maxell, Ltd.
- Digital Signal Quality Metric For AM HD Radio Signal23 Jul 2026US 2026/0213863 A1iBiquity Digital Corporation
Most cited
By later US patents
- Method for measuring the effectiveness of stimuli on decisions of shoppers1,084US 5,227,874 A1993
- Audience measurement system utilizing ancillary codes and passive signatures1,063US 5,481,294 AA. C. Nielsen Company · 1996
- Watermark embedder and reader942US 6,614,914 B1Digimarc Corporation · 2003
- Broadcast program identification method and apparatus928US 4,677,466 AA. C. Nielsen Company · 1987
- Multimedia bidirectional broadcast system878US 5,027,400 AHitachi, Ltd. · 1991