H04H 20/77
Using carrier waves
Official title: using carrier waves
H04H20/77 (Using carrier waves) appears on 638 US grants and 457 published applications in this corpus.
Search patents in H04H- Granted patents
- 638
- Published applications
- 457
- Assignees
- 242
- Inventors
- 863
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 15 | 0 |
| 1996 | 23 | 0 |
| 1997 | 24 | 0 |
| 1998 | 37 | 0 |
| 1999 | 35 | 0 |
| 2000 | 20 | 0 |
| 2001 | 40 | 16 |
| 2002 | 23 | 34 |
| 2003 | 21 | 24 |
| 2004 | 9 | 21 |
| 2005 | 12 | 24 |
| 2006 | 24 | 14 |
| 2007 | 10 | 68 |
| 2008 | 28 | 37 |
| 2009 | 25 | 29 |
| 2010 | 24 | 12 |
| 2011 | 17 | 12 |
| 2012 | 18 | 11 |
| 2013 | 18 | 12 |
| 2014 | 19 | 17 |
| 2015 | 18 | 12 |
| 2016 | 12 | 13 |
| 2017 | 14 | 8 |
| 2018 | 12 | 13 |
| 2019 | 15 | 18 |
| 2020 | 16 | 13 |
| 2021 | 14 | 16 |
| 2022 | 8 | 9 |
| 2023 | 13 | 14 |
| 2024 | 8 | 8 |
| 2025 | 7 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Provider equipment identification9 Jun 2026US 12,652,609 B2Times Fiber Communications, Inc.
- Face plate for cable tap unit10 Feb 2026US 12,550,270 B2Technetix B.V.
- Broadband digital access (BDA) architecture for extending digital broadband communications in an HFC network30 Dec 2025US 12,513,359 B2Applied Optoelectronics, Inc.
- Identifying a node port that is experiencing ingress4 Nov 2025US 12,464,091 B1Harmonic, Inc.
- Fiber-coaxial amplifier device23 Sep 2025US 12,425,540 B2Technetix B.V.
- Face plate for cable tap unit28 May 2026US 2026/0150202 A1Technetix B.V.
- Catv hybrid fiber-coaxial network amplifier portable wireless adapter22 May 2025US 2025/0167828 A1Applied Optoelectronics, Inc.
- System for channel map delivery for hi split cable networks24 Oct 2024US 2024/0356664 A1ARRIS Enterprises LLC
- Resource allocation in communications networks using probability forecasts17 Oct 2024US 2024/0348358 A1Invidi Technologies Corporation
- Icon-based home certification, in-home leakage testing, and antenna matching pad1 Aug 2024US 2024/0259550 A1Viavi Solutions Inc.
Most cited
By later US patents
- Television program delivery system971US 5,559,549 ADiscovery Communications, Inc. · 1996
- Advanced set top terminal for cable television delivery systems699US 5,990,927 ADiscovery Communications, Inc. · 1999
- Set top terminal for cable television delivery systems688US 5,734,853 ADiscovery Communications, Inc. · 1998
- Lower overhead method for data transmission using ATM and SCDMA over hybrid fiber coax cable plant683US 5,991,308 ATerayon Communication Systems, Inc. · 1999
- Interactive computer system for providing an interactive presentation with personalized video, audio and graphics responses for multiple viewers637US 5,861,881 AACTV, Inc. · 1999