H04L 12/403
With centralised control
Official title: with centralised control, e.g. polling
H04L12/403 (With centralised control) appears on 1,791 US grants and 1,543 published applications in this corpus.
Search patents in H04L- Granted patents
- 1,791
- Published applications
- 1,543
- Assignees
- 815
- Inventors
- 3,654
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 13 | 0 |
| 1987 | 17 | 0 |
| 1988 | 12 | 0 |
| 1989 | 13 | 0 |
| 1990 | 20 | 0 |
| 1991 | 16 | 0 |
| 1992 | 16 | 0 |
| 1993 | 12 | 0 |
| 1994 | 16 | 0 |
| 1995 | 28 | 0 |
| 1996 | 33 | 0 |
| 1997 | 35 | 0 |
| 1998 | 58 | 0 |
| 1999 | 42 | 0 |
| 2000 | 23 | 0 |
| 2001 | 29 | 7 |
| 2002 | 28 | 79 |
| 2003 | 41 | 75 |
| 2004 | 41 | 52 |
| 2005 | 52 | 62 |
| 2006 | 57 | 59 |
| 2007 | 48 | 58 |
| 2008 | 43 | 66 |
| 2009 | 40 | 75 |
| 2010 | 72 | 72 |
| 2011 | 58 | 71 |
| 2012 | 62 | 63 |
| 2013 | 83 | 71 |
| 2014 | 66 | 55 |
| 2015 | 64 | 59 |
| 2016 | 51 | 64 |
| 2017 | 74 | 68 |
| 2018 | 57 | 55 |
| 2019 | 79 | 81 |
| 2020 | 78 | 84 |
| 2021 | 54 | 66 |
| 2022 | 68 | 64 |
| 2023 | 55 | 43 |
| 2024 | 42 | 42 |
| 2025 | 45 | 33 |
| 2026 | 20 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Autonomous ready vehicle1 Sep 2026US 12,722,618 B2Polaris Industries Inc.
- Method for transmitting and receiving data in short-range wireless communication system and device therefor25 Aug 2026US 12,719,806 B2LG Electronics Inc.
- Polling scheme in an industrial network system11 Aug 2026US 12,706,776 B2Schneider Electric Industries SAS
- Systems and methods for determining a location of a vehicle within a geofence21 Jul 2026US 12,689,868 B2GeoFrenzy, Inc.
- Method and apparatus using resource allocation slot aggregation aspects for determining slots to sense and to include in a resource set7 Jul 2026US 12,676,705 B2Nokia Technologies Oy
- Global registration system for aerial vehicles24 Sep 2026US 2026/0292440 A1GeoFrenzy, Inc.
- Method and system for exchanging data in a main subscriber and sub-subscriber fieldbus system3 Sep 2026US 2026/0261453 A1Beckhoff Automation GmbH
- Control and monitoring signal transmission system27 Aug 2026US 2026/0254540 A1
- Management device, communication system, vehicle, and method20 Aug 2026US 2026/0246740 A1Toyota Jidosha Kabushiki Kaisha
- Transmission of signals in a control system30 Jul 2026US 2026/0222243 A1BSH Hausgeräte GmbH
Most cited
By later US patents
- Multi-tier architecture for control network949US 6,094,416 AI/O Control Corporation · 2000
- Multi-capability facilities monitoring and control intranet for facilities management system553US 6,363,422 B12002
- Access protocol for a common channel wireless network407US 5,461,627 A1995
- Methods and apparatus for performing data acquisition and control401US 7,007,107 B1United Electronic Industries · 2006
- Real-time multi-user game communication system using existing cable television infrastructure361US 5,630,757 ANet Game Limited · 1997