G01L 19/12
Alarms or signals
G01L19/12 (Alarms or signals) appears on 274 US grants and 189 published applications in this corpus.
Search patents in G01L- Granted patents
- 274
- Published applications
- 189
- Assignees
- 218
- Inventors
- 526
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 9 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 13 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 9 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 5 | 3 |
| 2003 | 3 | 7 |
| 2004 | 5 | 8 |
| 2005 | 3 | 4 |
| 2006 | 7 | 2 |
| 2007 | 2 | 1 |
| 2008 | 0 | 4 |
| 2009 | 4 | 3 |
| 2010 | 3 | 9 |
| 2011 | 3 | 3 |
| 2012 | 2 | 5 |
| 2013 | 3 | 4 |
| 2014 | 5 | 7 |
| 2015 | 6 | 19 |
| 2016 | 11 | 11 |
| 2017 | 10 | 10 |
| 2018 | 14 | 16 |
| 2019 | 9 | 14 |
| 2020 | 11 | 11 |
| 2021 | 11 | 13 |
| 2022 | 9 | 11 |
| 2023 | 4 | 6 |
| 2024 | 10 | 6 |
| 2025 | 8 | 8 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sensor device6 Oct 2026US 12,754,092 B2Murata Manufacturing Co., Ltd.
- Non-wetted pressure measurement method, control method, device, and analyzer1 Sep 2026US 12,723,937 B2Sony Group Corporation
- Sensor systems and methods for remotely monitoring a fluid property12 May 2026US 12,625,025 B2
- Notification sensor arrangement for a differential pressure sensor and a method for outputting a sensed warning signal21 Apr 2026US 12,607,524 B2First Sensor AG
- Pressure monitoring system for wet barrel hydrant20 Jan 2026US 12,529,616 B2Mueller International, LLC
- Visual indicator of vacuum pressure in a pneumatic circuit16 Jul 2026US 2026/0202277 A1Coval
- Digital pressure gauge2 Jul 2026US 2026/0185886 A1M.A.T. Industries, Inc.
- Pressure sensor system12 Mar 2026US 2026/0071927 A1Absolute Accuracy, LLC
- Feedback controlled gas lift conveyance of slurry13 Nov 2025US 2025/0347297 A1
- Method and apparatus for detection and visual alerting of an electrical fault within a tank28 Aug 2025US 2025/0271320 A1
Most cited
By later US patents
- Dirt accumulation indicator for air intake filters123US 4,688,511 AFilterwerk Mann & Hummel GmbH · 1987
- Indicating device for vacuum cleaners119US 4,199,838 AAktiebolaget Electrolux · 1980
- Low air warning system for scuba divers58US 5,191,317 AUndersea Industries, Inc. · 1993
- Flow rate threshold sensor54US 4,747,364 AFilter Alert Corporation · 1988
- Sucker for plate glass53US 5,184,858 AToyo Sangyo Co., Ltd. · 1993