H01H 35/26
Details
H01H35/26 (Details) appears on 385 US grants and 132 published applications in this corpus.
Search patents in H01H- Granted patents
- 385
- Published applications
- 132
- Assignees
- 198
- Inventors
- 555
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 13 | 0 |
| 1978 | 6 | 0 |
| 1979 | 7 | 0 |
| 1980 | 8 | 0 |
| 1981 | 13 | 0 |
| 1982 | 10 | 0 |
| 1983 | 4 | 0 |
| 1984 | 11 | 0 |
| 1985 | 13 | 0 |
| 1986 | 11 | 0 |
| 1987 | 10 | 0 |
| 1988 | 18 | 0 |
| 1989 | 16 | 0 |
| 1990 | 13 | 0 |
| 1991 | 7 | 0 |
| 1992 | 20 | 0 |
| 1993 | 9 | 0 |
| 1994 | 14 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 7 | 1 |
| 2003 | 5 | 2 |
| 2004 | 2 | 1 |
| 2005 | 1 | 4 |
| 2006 | 5 | 5 |
| 2007 | 5 | 4 |
| 2008 | 8 | 3 |
| 2009 | 3 | 5 |
| 2010 | 5 | 5 |
| 2011 | 3 | 6 |
| 2012 | 5 | 6 |
| 2013 | 3 | 4 |
| 2014 | 3 | 3 |
| 2015 | 7 | 6 |
| 2016 | 9 | 9 |
| 2017 | 8 | 7 |
| 2018 | 13 | 11 |
| 2019 | 6 | 9 |
| 2020 | 9 | 7 |
| 2021 | 7 | 4 |
| 2022 | 3 | 14 |
| 2023 | 5 | 6 |
| 2024 | 11 | 3 |
| 2025 | 9 | 5 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 35/2607Means for adjustment of "on" or "off" operating pressure207
- H01H 35/2657With different switches operated at substantially different pressures73
- H01H 35/28Compensation for variation of ambient pressure or temperature39
- H01H 35/30Means for transmitting pressure to pressure-responsive operating part16
- H01H 35/2671Means to detect leaks in the pressure sensitive element15
- H01H 35/2685Means to protect pressure sensitive element against over pressure13
- H01H 35/2692Comprising pneumatic snap-action8
- H01H 35/2678Means to isolate oscillating component of pressure6
Recent patents
- Multi-mode air compressor pressure power switch11 Aug 2026US 12,706,262 B2Transform Sr Brands LLC
- Pressure switch with two pressing members and a hermetic electric compressor arrangement therewith25 Nov 2025US 12,480,486 B2Ubukata Industries Co., Ltd.
- Pressure-actuated switch for compressors30 Sep 2025US 12,431,307 B2WIKA Alexander Wiegand SE & Co. KG
- Gas density relay with online self-checking function, and checking method therefor19 Aug 2025US 12,392,700 B2Shanghai Roye Electric Co., Ltd.
- Thermoelectric tripping device and coupling arrangement thereof29 Jul 2025US 12,370,395 B2Tyco Fire & Security GmbH
- Simulation verification method and apparatus for gas density relay27 Aug 2026US 2026/0251713 A1Shanghai Roye Electric Co., Ltd.
- Safety pressure switch5 Mar 2026US 2026/0066201 A1ASM IP Holding B. V.
- Furnace Diagnostic By-Pass Apparatus27 Nov 2025US 2025/0364197 A1
- Method, device, use and installation for gas density monitoring10 Apr 2025US 2025/0116588 A1Trafag AG
- Multi-mode air compressor pressure power switch13 Feb 2025US 2025/0054715 A1Transform Sr Brands LLC
Most cited
By later US patents
- Fluid control valve and system with leak detection and containment119US 4,901,751 ASystems Chemistry, Inc. · 1990
- Assured-check computer-based bank credit disbursing system106US 4,053,735 A1977
- Tactile switch for a mobile electronic device62US 9,892,876 B2Hand Held Products, Inc. · 2018
- Fluid level sensing and control system61US 6,595,051 B1Chandler Systems, Inc. · 2003
- Magnetic pressure indicator for a container51US 3,946,175 AHTL Industries, Inc. · 1976