H04B
Transmission
H04B (Transmission) appears on 179,194 US grants and 190,056 published applications in this corpus.
Search patents in H04B- Granted patents
- 179,194
- Published applications
- 190,056
- Assignees
- 20,102
- Inventors
- 173,156
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 320 | 0 |
| 1977 | 390 | 0 |
| 1978 | 304 | 0 |
| 1979 | 248 | 0 |
| 1980 | 356 | 0 |
| 1981 | 300 | 0 |
| 1982 | 296 | 0 |
| 1983 | 279 | 0 |
| 1984 | 314 | 0 |
| 1985 | 363 | 0 |
| 1986 | 361 | 0 |
| 1987 | 434 | 0 |
| 1988 | 393 | 0 |
| 1989 | 504 | 0 |
| 1990 | 500 | 0 |
| 1991 | 563 | 0 |
| 1992 | 627 | 0 |
| 1993 | 775 | 0 |
| 1994 | 944 | 0 |
| 1995 | 1043 | 0 |
| 1996 | 1277 | 0 |
| 1997 | 1219 | 0 |
| 1998 | 1925 | 0 |
| 1999 | 1997 | 0 |
| 2000 | 2099 | 0 |
| 2001 | 2111 | 940 |
| 2002 | 2360 | 3488 |
| 2003 | 2414 | 3772 |
| 2004 | 2594 | 4499 |
| 2005 | 2478 | 4457 |
| 2006 | 3740 | 4472 |
| 2007 | 3063 | 4839 |
| 2008 | 3178 | 4913 |
| 2009 | 3194 | 5135 |
| 2010 | 3973 | 5517 |
| 2011 | 4272 | 5348 |
| 2012 | 5304 | 6031 |
| 2013 | 6121 | 7344 |
| 2014 | 7251 | 8267 |
| 2015 | 8280 | 9081 |
| 2016 | 8797 | 9948 |
| 2017 | 9726 | 10208 |
| 2018 | 9851 | 10225 |
| 2019 | 11271 | 10723 |
| 2020 | 10680 | 11238 |
| 2021 | 9425 | 10540 |
| 2022 | 9198 | 10660 |
| 2023 | 8784 | 10740 |
| 2024 | 8887 | 10705 |
| 2025 | 8489 | 9522 |
| 2026 | 5922 | 7444 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- H04B 7/00Radio transmission systems, i.e. using radiation field63,757
- H04B 1/00Details of transmission systems, not covered by a single one of groups58,196
- H04B 10/00Transmission systems employing electromagnetic waves other than radio-waves31,608
- H04B 17/00Monitoring19,110
- H04B 3/00Line transmission systems10,507
- H04B 5/00Near-field transmission systems10,393
- H04B 2201/00Indexing scheme relating to details of transmission systems not covered by aIndexing code4,041
- H04B 2203/00Indexing scheme relating to line transmission systemsIndexing code2,933
All 14 main groupsShow fewer
- H04B 15/00Suppression or limitation of noise or interference2,866
- H04B 2210/00Indexing scheme relating to optical transmission systemsIndexing code1,808
- H04B 13/00Transmission systems characterised by the medium used for transmission, not provided for1,270
- H04B 11/00Transmission systems employing ultrasonic, sonic or infrasonic waves1,172
- H04B 14/00Transmission systems not characterised by the medium used for transmission997
- H04B 2215/00Reducing interference at the transmission system levelIndexing code487
Recent patents
- Method for improving the transmission of data by a wheel unit6 Oct 2026US 12,752,579 B2Continental Automotive Technologies GmbH
- Electronic device and method for calibrating temperature related scattering matrix of temperature sensitive device6 Oct 2026US 12,754,080 B2Mediatek Inc.
- Crosstalk measuring method, and crosstalk measuring device6 Oct 2026US 12,754,100 B2Fujikura Ltd.
- Non-invasive method and system for detecting quality of packaged milk6 Oct 2026US 12,754,178 B2Tata Consultancy Services Limited
- Quantum mixer to sense arbitrary-frequency fields6 Oct 2026US 12,755,180 B2Massachusetts Institute of Technology
- Method for activating a vehicle function and associated activation device8 Oct 2026US 2026/0307621 A1Continental Automotive Technologies GmbH
- System for detecting circuit anomalies in trailer wiring8 Oct 2026US 2026/0309762 A1Grote Industries, Inc.
- Processing unit occupancy rules and prioritization rules for artificial intelligence enabled use cases8 Oct 2026US 2026/0310516 A1Apple Inc.
- Method, terminal, and smart card for registering and recognizing fingerprint8 Oct 2026US 2026/0310925 A1Samsung Electronics Co., Ltd.
- Apparatus and method for position estimation based on distance-based channel charting with velocity and map information8 Oct 2026US 2026/0310961 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
Most cited
By later US patents
- Authorized location reporting paging system2,396US 6,560,461 B12003
- Location reporting satellite paging system with optional blocking of location reporting2,183US 5,918,159 A1999
- Analyte monitoring device and methods of use1,821US 6,560,471 B1TheraSense, Inc. · 2003
- Method and device for obtaining playlist content over a network1,821US 8,045,952 B2Horsham Enterprises, LLC · 2011
- Wired, wireless, infrared, and powerline audio entertainment systems1,763US 7,853,341 B2KSC Industries, Inc. · 2010