H04M 19/001
Current supply source at the exchanger providing current to substations
Official title: {Current supply source at the exchanger providing current to substations}
H04M19/001 (Current supply source at the exchanger providing current to substations) appears on 604 US grants and 201 published applications in this corpus.
Search patents in H04M- Granted patents
- 604
- Published applications
- 201
- Assignees
- 205
- Inventors
- 692
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 23 | 0 |
| 1978 | 11 | 0 |
| 1979 | 5 | 0 |
| 1980 | 14 | 0 |
| 1981 | 18 | 0 |
| 1982 | 21 | 0 |
| 1983 | 13 | 0 |
| 1984 | 20 | 0 |
| 1985 | 21 | 0 |
| 1986 | 27 | 0 |
| 1987 | 12 | 0 |
| 1988 | 16 | 0 |
| 1989 | 18 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 9 | 0 |
| 1993 | 10 | 0 |
| 1994 | 16 | 0 |
| 1995 | 8 | 0 |
| 1996 | 11 | 0 |
| 1997 | 10 | 0 |
| 1998 | 17 | 0 |
| 1999 | 10 | 0 |
| 2000 | 17 | 0 |
| 2001 | 16 | 5 |
| 2002 | 23 | 20 |
| 2003 | 24 | 16 |
| 2004 | 22 | 26 |
| 2005 | 11 | 9 |
| 2006 | 21 | 4 |
| 2007 | 13 | 14 |
| 2008 | 5 | 8 |
| 2009 | 7 | 7 |
| 2010 | 4 | 7 |
| 2011 | 7 | 10 |
| 2012 | 12 | 4 |
| 2013 | 12 | 5 |
| 2014 | 7 | 4 |
| 2015 | 1 | 6 |
| 2016 | 7 | 10 |
| 2017 | 9 | 6 |
| 2018 | 7 | 14 |
| 2019 | 14 | 9 |
| 2020 | 12 | 3 |
| 2021 | 4 | 4 |
| 2022 | 2 | 2 |
| 2023 | 7 | 2 |
| 2024 | 0 | 2 |
| 2025 | 4 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Programmable power supplies for cellular base stations and related methods of reducing power loss in cellular systems8 Sep 2026US 12,730,469 B2Outdoor Wireless Networks LLC
- Systems and methods for providing voltage boosting to a time domain duplexing radio2 Jun 2026US 12,647,884 B2Outdoor Wireless Networks LLC
- Power supplies for cellular base stations and related methods of reducing power loss in cellular systems16 Dec 2025US 12,498,749 B2Outdoor Wireless Networks LLC
- Programmable power supplies for cellular base stations and related methods of reducing power loss in cellular systems9 Dec 2025US 12,493,313 B2Outdoor Wireless Networks LLC
- Voltage conversion techniques9 Dec 2025US 12,493,314 B2Outdoor Wireless Networks LLC
- Systems and methods for providing voltage boosting to a time domain duplexing radio3 Sep 2026US 2026/0261967 A1Outdoor Wireless Networks LLC
- Systems and methods for providing voltage boosting to a time domain duplexing radio1 Jan 2026US 2026/0006546 A1Outdoor Wireless Networks LLC
- System and method for charging electronic devices in a controlled environment6 Nov 2025US 2025/0343435 A1Global Tel'Link Corporation
- Test of a Communication Interface Connected to an Analog Telephone Line29 May 2025US 2025/0175553 A1Sagemcom Broadband SAS
- Fast charging device with multiple intelligent terminals and charging method thereof12 Dec 2024US 2024/0413646 A1
Most cited
By later US patents
- Adaptive inductive power supply with communication296US 8,116,681 B2Access Business Group International LLC · 2012
- Adaptive inductive power supply with communication276US 8,116,683 B2Access Business Group International LLC · 2012
- Adaptive inductive power supply with communication258US 7,522,878 B2Access Business Group International LLC · 2009
- Cable access device and method130US 5,845,190 AEricsson Raynet · 1998
- Line powered DCA including dual programmed microcontrollers107US 5,224,154 AUniversal Data Systems, Inc. · 1993