G01L 13/023
Using bellows
Official title: {using bellows}
G01L13/023 (Using bellows) appears on 18 US grants and 10 published applications in this corpus.
Search patents in G01L- Granted patents
- 18
- Published applications
- 10
- Assignees
- 17
- Inventors
- 26
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Diaphragm pressure gauge and compound pressure gauge14 Oct 2025US 12,442,706 B2Q'z Corporation
- Pressure gauge23 Nov 2021US 11,181,430 B2Q'z Corporation
- Temperature-compensating absolute pressure sensor31 Dec 2019US 10,520,383 B2Rosemount Inc.
- Optical pressure sensor with reduced mechanical stresses25 Sep 2018US 10,082,437 B2
- Fluidic chip with displacable patterned layer for detecting fluid pressure6 Jun 2017US 9,671,375 B2Agilent Technologies, Inc.
- Visual indicator of vacuum pressure in a pneumatic circuit16 Jul 2026US 2026/0202277 A1Coval
- Diaphragm pressure gauge and compound pressure gauge15 Jan 2026US 2026/0016357 A1Q'z Corporation
- Diaphragm pressure gauge and compound pressure gauge28 Sep 2023US 2023/0304883 A1Vacuum Products Corporation
- Pressure gauge23 Jul 2020US 2020/0232861 A1Q'z Corporation
- Temperature-compensating absolute pressure sensor5 Apr 2018US 2018/0094997 A1Rosemount Inc.
Most cited
By later US patents
- Vibrating beam pressure sensor11US 4,311,053 ARosemount Inc. · 1982
- Temperature compensation apparatus for a liquid filled conduit9US 4,332,166 AInternational Telephone and Telegraph Corporation · 1982
- Pressure sensing system8US 3,956,937 AInternational Telephone and Telegraph Corporation · 1976
- Precision pressure-responsive fluid gauge7US 4,266,430 AFluid Data Systems · 1981
- Optical pressure sensor with reduced mechanical stresses6US 10,082,437 B22018