H04M
Telephonic communication
Official title: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08)
H04M (Telephonic communication) appears on 116,390 US grants and 120,753 published applications in this corpus.
Search patents in H04M- Granted patents
- 116,390
- Published applications
- 120,753
- Assignees
- 16,808
- Inventors
- 155,725
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 272 | 0 |
| 1977 | 305 | 0 |
| 1978 | 248 | 0 |
| 1979 | 192 | 0 |
| 1980 | 196 | 0 |
| 1981 | 238 | 0 |
| 1982 | 257 | 0 |
| 1983 | 230 | 0 |
| 1984 | 335 | 0 |
| 1985 | 361 | 0 |
| 1986 | 353 | 0 |
| 1987 | 419 | 0 |
| 1988 | 462 | 0 |
| 1989 | 541 | 0 |
| 1990 | 492 | 0 |
| 1991 | 480 | 0 |
| 1992 | 464 | 0 |
| 1993 | 533 | 0 |
| 1994 | 693 | 0 |
| 1995 | 858 | 0 |
| 1996 | 1009 | 0 |
| 1997 | 997 | 0 |
| 1998 | 1600 | 0 |
| 1999 | 1872 | 0 |
| 2000 | 1783 | 0 |
| 2001 | 1958 | 1045 |
| 2002 | 2018 | 3353 |
| 2003 | 1989 | 3513 |
| 2004 | 2374 | 4288 |
| 2005 | 2050 | 4759 |
| 2006 | 3175 | 5104 |
| 2007 | 2624 | 5638 |
| 2008 | 2500 | 5584 |
| 2009 | 2690 | 5360 |
| 2010 | 3337 | 5456 |
| 2011 | 4018 | 4859 |
| 2012 | 5359 | 5112 |
| 2013 | 5867 | 5832 |
| 2014 | 6213 | 6175 |
| 2015 | 5858 | 6448 |
| 2016 | 5899 | 6243 |
| 2017 | 6147 | 5752 |
| 2018 | 5443 | 5128 |
| 2019 | 5745 | 4855 |
| 2020 | 5367 | 5034 |
| 2021 | 4346 | 4687 |
| 2022 | 4042 | 4231 |
| 2023 | 3670 | 4105 |
| 2024 | 3544 | 3448 |
| 2025 | 3224 | 2836 |
| 2026 | 1743 | 1908 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- H04M 1/00Substation equipment62,573
- H04M 3/00Automatic or semi-automatic exchanges40,592
- H04M 2250/00Details of telephonic subscriber devicesIndexing code15,975
- H04M 2203/00Aspects of automatic or semi-automatic exchangesIndexing code12,696
- H04M 7/00Arrangements for interconnection between switching centres12,022
- H04M 15/00Arrangements for metering, time-control or time indication10,037
- H04M 11/00Telephonic communication systems specially adapted for combination with other electrical systems7,597
- H04M 2201/00Electronic components, circuits, software, systems or apparatus used in telephone systemsIndexing code7,375
All 17 main groupsShow fewer
- H04M 2215/00Metering arrangementsIndexing code4,598
- H04M 2242/00Special services or facilitiesIndexing code3,940
- H04M 2207/00Type of exchange or network, i.e. telephonic medium, in which the telephonicIndexing code3,915
- H04M 19/00Current supply arrangements for telephone systems3,733
- H04M 9/00Arrangements for interconnection not involving centralised switching2,825
- H04M 17/00Prepayment of wireline communication systems, wireless communication systems or telephone systems1,892
- H04M 5/00Manual exchanges51
- H04M 13/00Party-line systems11
- H04M 99/00Subject matter not provided for in other groups of this subclass1
Recent patents
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- Processor power management6 Oct 2026US 12,754,597 B2Intel Corporation
- Window, method of manufacturing window, and electronic device including window8 Oct 2026US 2026/0310259 A1Samsung Display Co., Ltd.
- Electronic device8 Oct 2026US 2026/0310260 A1Samsung Display Co., Ltd.
- Slidable Support for Mobile Phone Shell8 Oct 2026US 2026/0310263 A1Shenzhen Huichen Technology Co., Ltd
- Devices, Methods, and Graphical User Interfaces for Providing a Home Button Replacement8 Oct 2026US 2026/0310305 A1Apple Inc.
- Computer-implemented method for connecting a user to a mobile telephone-based language interpretation session8 Oct 2026US 2026/0310909 A1
Most cited
By later US patents
- Method and system for accessing CRM data via voice2,268US 6,804,330 B1Siebel Systems, Inc. · 2004
- System and method for smart scripting call centers and configuration thereof2,196US 6,826,745 B2Siebel Systems, Inc. · 2004
- System and method for generating a dynamic interface via a communications network2,178US 6,850,949 B2Right Now Technologies, Inc. · 2005
- Computer telephony integration hotelling method and system2,172US 6,577,726 B1Siebel Systems, Inc. · 2003
- Method and system for remote delivery of retail banking services1,959US 5,220,501 AOnline Resources, Ltd. · 1993