G05B 2219/33197
Current loop 4-20-ma milliampere
Official title: Current loop 4-20-mA milliampere
G05B2219/33197 (Current loop 4-20-ma milliampere) appears on 10 US grants and 8 published applications in this corpus.
Search patents in G05B- Granted patents
- 10
- Published applications
- 8
- Assignees
- 8
- Inventors
- 24
- Latest grant
- 14 May 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 2 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Control electronics for a process device and method for operation therefor14 May 2019US 10,289,135 B2Endress+Hauser Wetzer GmbH+Co.KG
- Process control loop current verification21 Nov 2017US 9,823,276 B2Rosemount Inc.
- Method and arrangement for monitoring a transmission medium23 Jun 2009US 7,551,074 B2Siemens Aktiengesellschaft
- System and method for the safe automatic detection of a field device communicating with current modulated signal14 Aug 2007US 7,257,498 B2Honeywell International Inc.
- Process device with loop override29 Aug 2006US 7,098,798 B2Rosemount Inc.
- Automation engineering two-wire field device7 Oct 2021US 2021/0311097 A1Endress + Hauser GmbH + Co. KG
- Control electronics for a process device and method for operation therefor26 Nov 2015US 2015/0338860 A1Endress+Hauser Wetzer GmbH+Co.KG
- Process control loop current verification5 Dec 2013US 2013/0325381 A1Rosemount Inc.
- Field device4 Oct 2012US 2012/0248896 A1Yamatake Corporation
- Method and arrangement for monitoring a transmission medium1 Feb 2007US 2007/0024428 A1Siemens Aktiengesellschaft
Most cited
By later US patents
- Conversion circuit for process control system45US 6,307,483 B1Rosemount Inc. · 2001
- Process device with quiescent current diagnostics36US 7,018,800 B2Rosemount Inc. · 2006
- Multiple die industrial process control transmitter19US 6,480,131 B1Rosemount Inc. · 2002
- Conversion circuit for process control system18US 5,650,777 ARosemount Inc. · 1997
- Conversion circuit for process control system17US 5,963,147 ARosemont Inc. · 1999