G08B 13/20
Actuation by change of fluid pressure
G08B13/20 (Actuation by change of fluid pressure) appears on 56 US grants and 32 published applications in this corpus.
Search patents in G08B- Granted patents
- 56
- Published applications
- 32
- Assignees
- 30
- Inventors
- 106
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 3 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 2 | 3 |
| 2015 | 2 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 3 | 2 |
| 2019 | 1 | 3 |
| 2020 | 1 | 1 |
| 2021 | 2 | 1 |
| 2022 | 0 | 2 |
| 2023 | 5 | 2 |
| 2024 | 1 | 2 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pressurized security enclosures for media terminals25 Aug 2026US 12,718,646 B2NCR Atleos Corporation
- Intrusion movement prediction1 Oct 2024US 12,106,648 B2International Business Machines Corporation
- Intrusion movement prediction17 Oct 2023US 11,790,744 B1International Business Machines Corporation
- Indoor intrusion detection10 Oct 2023US 11,782,068 B2International Business Machines Corporation
- Method and corresponding circuit for detecting an opening or closing event15 Aug 2023US 11,725,998 B2STMicroelectronics S,r.l.
- System using air pressure data for security and hazard detection6 Nov 2025US 2025/0342758 A1Ademco Inc.
- Pressure data for utility monitoring30 Oct 2025US 2025/0335927 A1Ademco Inc.
- System and method for monitoring opening or closing of doors of an area of interest19 Dec 2024US 2024/0418592 A1Carrier Corporation
- Pressurized security enclosures for media terminals3 Oct 2024US 2024/0331483 A1NCR Corporation
- Intrusion movement prediction28 Dec 2023US 2023/0419803 A1International Business Machines Corporation
Most cited
By later US patents
- Security system220US 5,691,697 AKidde Technologies, Inc. · 1997
- Portable intrusion alarm32US 4,853,677 A1989
- System for monitoring changes in the fluidic impedance or volume of an enclosure31US 3,990,069 A1976
- Infra-sonic detector and alarm with self adjusting reference27US 4,991,145 ARabbit Systems, Inc. · 1991
- Detection system21US 4,055,844 ABeloit Management & Research Center · 1977