H04
Electric communication technique
H04 (Electric communication technique) appears on 1,333,805 US grants and 1,483,234 published applications in this corpus.
Search patents in H04- Granted patents
- 1,333,805
- Published applications
- 1,483,234
- Assignees
- 106,235
- Inventors
- 1,077,616
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1952 | 0 |
| 1977 | 1971 | 0 |
| 1978 | 1707 | 0 |
| 1979 | 1349 | 0 |
| 1980 | 1786 | 0 |
| 1981 | 1829 | 0 |
| 1982 | 1874 | 0 |
| 1983 | 1906 | 0 |
| 1984 | 2129 | 0 |
| 1985 | 2613 | 0 |
| 1986 | 2801 | 0 |
| 1987 | 3668 | 0 |
| 1988 | 3341 | 0 |
| 1989 | 4315 | 0 |
| 1990 | 3969 | 0 |
| 1991 | 4322 | 0 |
| 1992 | 4706 | 0 |
| 1993 | 5242 | 0 |
| 1994 | 6279 | 0 |
| 1995 | 6825 | 0 |
| 1996 | 8327 | 0 |
| 1997 | 7996 | 0 |
| 1998 | 12523 | 0 |
| 1999 | 12977 | 0 |
| 2000 | 13482 | 0 |
| 2001 | 13977 | 7074 |
| 2002 | 14625 | 26890 |
| 2003 | 15489 | 30276 |
| 2004 | 17695 | 34592 |
| 2005 | 16552 | 39364 |
| 2006 | 24765 | 41929 |
| 2007 | 21991 | 44479 |
| 2008 | 24059 | 47976 |
| 2009 | 26660 | 48546 |
| 2010 | 34633 | 49637 |
| 2011 | 37661 | 47710 |
| 2012 | 47088 | 52412 |
| 2013 | 52123 | 59381 |
| 2014 | 60275 | 66954 |
| 2015 | 61339 | 72306 |
| 2016 | 64060 | 73720 |
| 2017 | 68254 | 73857 |
| 2018 | 66620 | 72846 |
| 2019 | 76835 | 76139 |
| 2020 | 78149 | 81883 |
| 2021 | 71588 | 79368 |
| 2022 | 70545 | 80064 |
| 2023 | 68211 | 78659 |
| 2024 | 69108 | 76833 |
| 2025 | 66176 | 67892 |
| 2026 | 45438 | 52447 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subclasses
Granted patents
- H04LDigital communication613,388
- H04NPictorial communication378,325
- H04WWireless communication networks347,696
- H04BTransmission179,194
- H04MTelephonic communication116,390
- H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers56,162
- H04JMultiplex communication37,042
- H04QSelecting34,478
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- Earpiece for a wearable electronic device and method of manufacturing the same8 Oct 2026US 2026/0306008 A1T&W Engineering A/S
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Most cited
By later US patents
- Systems and methods for secure transaction management and electronic rights protection3,563US 5,892,900 AIntertrust Technologies Corporation · 1999
- Intelligent electronic appliance system and method2,708US 6,850,252 B12005
- Systems and methods for displaying and recording control interface with television programs, video, advertising information and program scheduling information2,572US 6,177,931 B1Index Systems, Inc. · 2001
- Alignment of master and slave in a minimally invasive surgical apparatus2,565US 6,364,888 B1Intuitive Surgical, Inc. · 2002
- Computer method for updating a network design2,523US 5,821,937 ANetSuite Development, L.P. · 1998