H01H 50/08
Indicators
Official title: Indicators; Distinguishing marks
H01H50/08 (Indicators) appears on 87 US grants and 71 published applications in this corpus.
Search patents in H01H- Granted patents
- 87
- Published applications
- 71
- Assignees
- 60
- Inventors
- 207
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 1 |
| 2004 | 1 | 3 |
| 2005 | 5 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 2 | 3 |
| 2011 | 1 | 1 |
| 2012 | 2 | 1 |
| 2013 | 1 | 4 |
| 2014 | 1 | 2 |
| 2015 | 3 | 6 |
| 2016 | 7 | 3 |
| 2017 | 3 | 3 |
| 2018 | 2 | 5 |
| 2019 | 3 | 3 |
| 2020 | 4 | 7 |
| 2021 | 7 | 3 |
| 2022 | 5 | 3 |
| 2023 | 4 | 6 |
| 2024 | 4 | 4 |
| 2025 | 2 | 3 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic latching relay with microswitch8 Sep 2026US 12,731,746 B2Xiamen Hongfa Electric Power Controls Co., Ltd.
- Safety switch with an electromagnetic lock mechanism16 Jun 2026US 12,658,394 B2Keyence Corporation
- Relay module with combined control and power supply input17 Feb 2026US 12,555,730 B2Phoenix Contact GmbH & Co.KG
- Electrical switching element with status indicator and kit for such an element7 Oct 2025US 12,437,946 B2TE Connectivity Germany GmbH
- Relay with arc extinguishing devices9 Sep 2025US 12,412,717 B2BYD Company Limited
- Relay17 Sep 2026US 2026/0279709 A1Hitachi Energy Ltd
- Safety switch17 Sep 2026US 2026/0279712 A1Keyence Corporation
- Relay equipped with on/off contact detection mechanism23 Jul 2026US 2026/0213103 A1OMRON Corporation
- Relay9 Jul 2026US 2026/0196433 A1Xiamen Hongfa Electric Power Controls Co., Ltd.
- Sensor for relay position11 Dec 2025US 2025/0379015 A1Allegro MicroSystems, LLC
Most cited
By later US patents
- Electronic auxiliary contact for a contactor41US 5,424,900 AABB Stromberg Kojeet Oy · 1995
- Operation indicating device for electromagnetic relay38US 4,771,253 AIdec Izumi Corporation · 1988
- Solenoid operated switching device30US 5,227,750 APED Limited · 1993
- Electromagnetic relay28US 5,160,910 AOMRON Corporation · 1992
- Electromagnetic relay18US 5,907,268 AEH-Schrack Components Aktiengesellschaft · 1999