H04B 1/38
Transceivers, i.e. devices in which transmitter and receiver form a structural unit
Official title: Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
H04B1/38 (Transceivers, i.e. devices in which transmitter and receiver form a structural unit) appears on 22,952 US grants and 24,493 published applications in this corpus.
Search patents in H04B- Granted patents
- 22,952
- Published applications
- 24,493
- Assignees
- 5,017
- Inventors
- 36,805
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 31 | 0 |
| 1977 | 34 | 0 |
| 1978 | 36 | 0 |
| 1979 | 41 | 0 |
| 1980 | 37 | 0 |
| 1981 | 30 | 0 |
| 1982 | 35 | 0 |
| 1983 | 33 | 0 |
| 1984 | 29 | 0 |
| 1985 | 34 | 0 |
| 1986 | 26 | 0 |
| 1987 | 44 | 0 |
| 1988 | 30 | 0 |
| 1989 | 34 | 0 |
| 1990 | 41 | 0 |
| 1991 | 44 | 0 |
| 1992 | 64 | 0 |
| 1993 | 112 | 0 |
| 1994 | 119 | 0 |
| 1995 | 142 | 0 |
| 1996 | 184 | 0 |
| 1997 | 182 | 0 |
| 1998 | 300 | 0 |
| 1999 | 299 | 0 |
| 2000 | 290 | 0 |
| 2001 | 260 | 118 |
| 2002 | 283 | 384 |
| 2003 | 229 | 412 |
| 2004 | 266 | 555 |
| 2005 | 280 | 498 |
| 2006 | 441 | 572 |
| 2007 | 314 | 545 |
| 2008 | 310 | 484 |
| 2009 | 292 | 455 |
| 2010 | 418 | 493 |
| 2011 | 397 | 497 |
| 2012 | 486 | 588 |
| 2013 | 577 | 968 |
| 2014 | 761 | 1160 |
| 2015 | 1049 | 1463 |
| 2016 | 1391 | 1927 |
| 2017 | 1646 | 2001 |
| 2018 | 1724 | 1646 |
| 2019 | 1824 | 1681 |
| 2020 | 1675 | 1601 |
| 2021 | 1317 | 1468 |
| 2022 | 1192 | 1274 |
| 2023 | 1030 | 1190 |
| 2024 | 993 | 1039 |
| 2025 | 924 | 868 |
| 2026 | 622 | 606 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04B 1/40Circuits11,146
- H04B 1/3827Portable transceivers8,249
- H04B 1/3816Mechanical arrangements for accommodating identification devices1,159
- H04B 1/3822Specially adapted for use in vehicles971
- H04B 1/3805With built-in auxiliary receivers569
- H04B 2001/3894Waterproofing of transmission deviceIndexing code472
Recent patents
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Most cited
By later US patents
- System and method for generating signal waveforms in a CDMA cellular telephone system1,721US 5,103,459 AQUALCOMM Incorporated · 1992
- Auxiliary battery holder with multicharger functionality1,249US 6,043,626 AEricsson Inc. · 2000
- Hearing aid with wireless remote processor1,063US 5,721,783 A1998
- Terminal and electronic water-resistance method919US 9,590,433 B2Zte Corporation · 2017
- Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones789US 5,726,984 ANorand Corporation · 1998