G05B 19/052
Linking several plc's
Official title: {Linking several PLC's}
G05B19/052 (Linking several plc's) appears on 277 US grants and 216 published applications in this corpus.
Search patents in G05B- Granted patents
- 277
- Published applications
- 216
- Assignees
- 133
- Inventors
- 689
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 12 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 2 |
| 2003 | 2 | 1 |
| 2004 | 2 | 1 |
| 2005 | 2 | 6 |
| 2006 | 6 | 6 |
| 2007 | 1 | 3 |
| 2008 | 2 | 1 |
| 2009 | 6 | 7 |
| 2010 | 5 | 7 |
| 2011 | 2 | 4 |
| 2012 | 3 | 1 |
| 2013 | 5 | 8 |
| 2014 | 4 | 6 |
| 2015 | 2 | 13 |
| 2016 | 8 | 9 |
| 2017 | 6 | 7 |
| 2018 | 10 | 14 |
| 2019 | 18 | 9 |
| 2020 | 5 | 20 |
| 2021 | 19 | 12 |
| 2022 | 9 | 29 |
| 2023 | 13 | 12 |
| 2024 | 13 | 12 |
| 2025 | 17 | 13 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and device for automated parameterisation of an IO-link device15 Sep 2026US 12,736,938 B2Balluff GmbH
- I/O unit and communication system25 Aug 2026US 12,717,298 B2Fanuc Corporation
- Effective slave parameter management method and device of communication-based control system30 Jun 2026US 12,669,791 B2Ls Electric Co., Ltd.
- Exchanging of a programmable logic controller30 Jun 2026US 12,669,792 B2Siemens Mobility GmbH
- Control system for controlling a control target based on a communication abnormality and cooling system12 May 2026US 12,625,484 B2Nidec Corporation
- Interoperation system, interoperation method, interoperation program, and interoperation auxiliary program3 Sep 2026US 2026/0259540 A1Nikkiso Co., Ltd.
- Communication method and communication apparatus9 Jul 2026US 2026/0197280 A1Huawei Technologies Co., Ltd.
- Method for controlling automatic transit of yarn spindle, electronic device and storage medium28 May 2026US 2026/0145899 A1Zhejiang Hengyi Petrochemical Co., Ltd.
- Plc system, remote unit, and master station23 Apr 2026US 2026/0110998 A1Mitsubishi Electric Corporation
- Control system23 Apr 2026US 2026/0110999 A1Hitachi, Ltd.
Most cited
By later US patents
- Apparatus and method for high throughput sputtering366US 5,683,561 AConner Peripherals, Inc. · 1997
- LAN interface which permits a host computer to obtain data without interrupting a ladder program executing in the interface244US 5,151,978 ASquare D Company · 1992
- Apparatus for networking programmable logic controllers to host computers135US 5,159,673 ASquare D Company · 1992
- System for sharing data between microprocessor based devices130US 5,245,704 ASquare D Company · 1993
- Industrial control communication network and method127US 4,949,299 AAllen-Bradley Company, Inc. · 1990