H01H 2047/003
Detecting welded contacts and applying weld break pulses to coil
Official title: {Detecting welded contacts and applying weld break pulses to coil}
H01H2047/003 (Detecting welded contacts and applying weld break pulses to coil) appears on 61 US grants and 50 published applications in this corpus.
Search patents in H01H- Granted patents
- 61
- Published applications
- 50
- Assignees
- 42
- Inventors
- 114
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 3 |
| 2015 | 1 | 6 |
| 2016 | 6 | 5 |
| 2017 | 3 | 3 |
| 2018 | 7 | 1 |
| 2019 | 4 | 4 |
| 2020 | 2 | 6 |
| 2021 | 7 | 2 |
| 2022 | 1 | 0 |
| 2023 | 4 | 5 |
| 2024 | 2 | 6 |
| 2025 | 5 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- In-vehicle control device21 Jul 2026US 12,686,275 B2Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- In-vehicle control device16 Jun 2026US 12,658,392 B2Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- Detecting welded relay contacts using spanner voltage measurement4 Nov 2025US 12,461,156 B2Rockwell Automation Technologies, Inc.
- Method for actuating an electromechanical switching element23 Sep 2025US 12,424,403 B2Phoenix Contact GmbH & Co.KG
- Systems and methods for detecting welded contacts in a switch system1 Jul 2025US 12,347,636 B2Rockwell Automation Technologies, Inc.
- Method for actuating an electromechanical switching element14 Aug 2025US 2025/0259812 A1Phoenix Contact GmbH & Co.KG
- In-vehicle control device26 Jun 2025US 2025/0206141 A1Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- In-vehicle control device26 Jun 2025US 2025/0210291 A1Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- Detecting welded relay contacts using measurement after current break26 Dec 2024US 2024/0426913 A1Rockwell Automation Technologies, Inc.
- Detecting welded relay contacts using spanner voltage measurement26 Dec 2024US 2024/0426915 A1Rockwell Automation Technologies, Inc.
Most cited
By later US patents
- Fuzzy logic adaptive defrost control32US 5,493,867 AWhirlpool Corporation · 1996
- Method for loosening the contacts of a sticking relay as well as circuit arrangement for carrying out the method26US 4,914,315 ABayerische Motoren Werke Aktiengesellschaft · 1990
- Feed control device25US 8,541,978 B2Panasonic Corporation · 2013
- Defrost cycle controller17US 5,363,669 AWhirlpool Corporation · 1994
- "Contact arrangement for a relay"16US 4,937,544 ASiemens Aktiengesellschaft · 1990