H04M 15/8044
Least cost routing
Official title: {Least cost routing}
H04M15/8044 (Least cost routing) appears on 1,137 US grants and 1,163 published applications in this corpus.
Search patents in H04M- Granted patents
- 1,137
- Published applications
- 1,163
- Assignees
- 433
- Inventors
- 2,038
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 10 | 0 |
| 1999 | 20 | 0 |
| 2000 | 24 | 0 |
| 2001 | 35 | 14 |
| 2002 | 29 | 43 |
| 2003 | 35 | 24 |
| 2004 | 23 | 26 |
| 2005 | 24 | 53 |
| 2006 | 15 | 31 |
| 2007 | 17 | 28 |
| 2008 | 14 | 25 |
| 2009 | 20 | 15 |
| 2010 | 21 | 52 |
| 2011 | 27 | 51 |
| 2012 | 41 | 69 |
| 2013 | 63 | 84 |
| 2014 | 73 | 63 |
| 2015 | 79 | 86 |
| 2016 | 56 | 96 |
| 2017 | 98 | 66 |
| 2018 | 69 | 56 |
| 2019 | 69 | 54 |
| 2020 | 50 | 50 |
| 2021 | 48 | 50 |
| 2022 | 46 | 40 |
| 2023 | 35 | 37 |
| 2024 | 38 | 22 |
| 2025 | 23 | 24 |
| 2026 | 7 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Parcelled quantum resources4 Aug 2026US 12,700,024 B2Rigetti & Co, LLC
- Producing routing information for voice over IP communications4 Aug 2026US 12,701,077 B2VolP-Pal.com, Inc.
- Policy based selection of network19 May 2026US 12,634,786 B2Telefonaktiebolaget LM Ericsson (publ)
- Alternative charging handling based on QoS utilizing a policy control function to enforce policy and charging control rules5 May 2026US 12,621,391 B2Telefonaktiebolaget LM Ericsson (publ)
- Device-assisted services for protecting network capacity14 Apr 2026US 12,603,845 B2Headwater Research LLC
- Adapting Network Policies Based on Device Service Processor Configuration7 May 2026US 2026/0129425 A1Headwater Research LLC
- Systems and methods for controlling user data consumption12 Feb 2026US 2026/0046157 A1Gogo Business Aviation LLC
- Parcelled Quantum Resources5 Feb 2026US 2026/0038009 A1Rigetti & Co, LLC
- System and method for providing mobile services via virtual roaming29 Jan 2026US 2026/0032417 A1Tango Networks, Inc.
- Communication device25 Dec 2025US 2025/0392487 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- System for automatically updating personal profile server with updates to additional user information gathered from monitoring user's electronic consuming habits generated on computer during use968US 5,710,884 AIntel Corporation · 1998
- System for selective communication connection based on transaction pricing signals599US 5,802,502 ABritish Telecommunications Public Ltd.Co. · 1998
- Verifiable service billing for intermediate networking devices555US 8,023,425 B2Headwater Partners I LLC · 2011
- okApparatus for a voice over IP (voIP) telephony gateway and methods for use therein511US 6,363,065 B1Quintum Technologies, Inc. · 2002
- Method and system for matching entities in an auction460US 7,676,034 B12010