H01H 35/34
Actuated by diaphragm
Official title: actuated by diaphragm
H01H35/34 (Actuated by diaphragm) appears on 372 US grants and 108 published applications in this corpus.
Search patents in H01H- Granted patents
- 372
- Published applications
- 108
- Assignees
- 197
- Inventors
- 559
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 6 | 0 |
| 1978 | 14 | 0 |
| 1979 | 5 | 0 |
| 1980 | 12 | 0 |
| 1981 | 14 | 0 |
| 1982 | 9 | 0 |
| 1983 | 5 | 0 |
| 1984 | 11 | 0 |
| 1985 | 10 | 0 |
| 1986 | 5 | 0 |
| 1987 | 13 | 0 |
| 1988 | 10 | 0 |
| 1989 | 11 | 0 |
| 1990 | 14 | 0 |
| 1991 | 9 | 0 |
| 1992 | 21 | 0 |
| 1993 | 11 | 0 |
| 1994 | 13 | 0 |
| 1995 | 5 | 0 |
| 1996 | 10 | 0 |
| 1997 | 8 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 0 |
| 2002 | 5 | 1 |
| 2003 | 7 | 3 |
| 2004 | 2 | 1 |
| 2005 | 2 | 2 |
| 2006 | 3 | 4 |
| 2007 | 5 | 6 |
| 2008 | 8 | 6 |
| 2009 | 2 | 10 |
| 2010 | 8 | 4 |
| 2011 | 2 | 6 |
| 2012 | 5 | 4 |
| 2013 | 4 | 1 |
| 2014 | 4 | 4 |
| 2015 | 4 | 9 |
| 2016 | 6 | 9 |
| 2017 | 5 | 6 |
| 2018 | 12 | 6 |
| 2019 | 6 | 4 |
| 2020 | 5 | 6 |
| 2021 | 9 | 4 |
| 2022 | 3 | 2 |
| 2023 | 3 | 2 |
| 2024 | 1 | 6 |
| 2025 | 4 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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.
- Level sensor7 Oct 2025US 12,436,017 B2Goodrich Corporation
- Pressure-actuated switch for compressors30 Sep 2025US 12,431,307 B2WIKA Alexander Wiegand SE & Co. KG
- Multi-mode air compressor pressure power switch4 Feb 2025US 12,217,923 B2Transform Sr Brands LLC
- Welding-type systems using fluid sensors with bond resisting substances27 Aug 2026US 2026/0255500 A1Illinois Tool Works Inc.
- Multi-mode air compressor pressure power switch13 Feb 2025US 2025/0054715 A1Transform Sr Brands LLC
- Pressure switch and hermetic electric compressor5 Sep 2024US 2024/0297003 A1Ubukata Industries Co., Ltd.
- Pressure sensor with contact detection of the deflection of the membrane, pressure sensor system and method for generating a pressure signal29 Aug 2024US 2024/0288324 A1
- Membrane plunger fluid pressure switch14 Mar 2024US 2024/0082482 A1Becton, Dickinson and Company
Most cited
By later US patents
- Micromachined threshold pressure switch and method of manufacture151US 5,164,558 AMassachusetts Institute of Technology · 1992
- Features of a condition responsive switch130US 4,581,509 ATexas Instruments Incorporated · 1986
- Suction-actuated control system for whirlpool bath/spa installations101US 5,570,481 AVico Products Manufacturing Co., Inc. · 1996
- Alarm system for monitoring pressurized vehicular tires83US 4,319,220 A1982
- Pressure sensitive device for flow detection70US 9,714,878 B2Arrow Electronics, Inc. · 2017