G01L 7/20
Involving a closed chamber above the liquid level, the chamber being exhausted
Official title: involving a closed chamber above the liquid level, the chamber being exhausted or housing low-pressure gas; Liquid barometers
G01L7/20 (Involving a closed chamber above the liquid level, the chamber being exhausted) appears on 9 US grants and 5 published applications in this corpus.
Search patents in G01L- Granted patents
- 9
- Published applications
- 5
- Assignees
- 6
- Inventors
- 17
- Latest grant
- 9 Jun 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 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 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Sensor condensation prevention9 Jun 2020US 10,675,945 B2Waymo LLC
- Recreational vehicle wastewater tank measurement system and method24 Oct 2017US 9,797,761 B2
- Measuring absolute static pressure at one or more positions along a microfluidic device18 Jan 2005US 6,843,121 B1Eastman Kodak Company
- Sensing device and method for determining aneurysmal pressure in a body cavity30 Dec 2003US 6,669,647 B2Medtronic AVE, Inc.
- Measuring absolute static pressure at one or more positions along a microfluidic device10 Jun 2003US 6,575,026 B1Eastman Kodak Company
- Microelectromechanical sensor with external fluidic coupling having contamination-reducing structure12 Jun 2025US 2025/0189392 A1STMicroelectronics International N. V.
- Sensor condensation prevention19 Sep 2019US 2019/0283533 A1Waymo LLC
- Recreational vehicle wastewater tank measurement system and method2 Mar 2017US 2017/0059385 A1
- Method and apparatus for the measurement of intra-abdominal pressure utilizing a pressure transducer31 Jan 2008US 2008/0027373 A1
- Sensing device and method for determining aneurysmal pressure in a body cavity23 Oct 2003US 2003/0199772 A1Medtronic AVE, Inc.
Most cited
By later US patents
- Measuring absolute static pressure at one or more positions along a microfluidic device23US 6,843,121 B1Eastman Kodak Company · 2005
- Apparatus for and method of intravasal pressure measurement and low-contamination insertion of catheters for example into blood vessels14US 6,485,428 B12002
- Measuring absolute static pressure at one or more positions along a microfluidic device9US 6,575,026 B1Eastman Kodak Company · 2003
- Champagne pressure gauge4US 5,271,278 A1993
- Sensing device and method for determining aneurysmal pressure in a body cavity4US 6,669,647 B2Medtronic AVE, Inc. · 2003