G01N 7/14
Analysing materials by measuring the pressure or volume of a gas or
Official title: by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference {(determining urea G01N33/48742)}
G01N7/14 (Analysing materials by measuring the pressure or volume of a gas or) appears on 238 US grants and 131 published applications in this corpus.
Search patents in G01N- Granted patents
- 238
- Published applications
- 131
- Assignees
- 206
- Inventors
- 596
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 9 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 5 |
| 2003 | 3 | 4 |
| 2004 | 3 | 8 |
| 2005 | 6 | 5 |
| 2006 | 4 | 5 |
| 2007 | 1 | 4 |
| 2008 | 1 | 3 |
| 2009 | 3 | 6 |
| 2010 | 3 | 3 |
| 2011 | 3 | 3 |
| 2012 | 5 | 4 |
| 2013 | 5 | 5 |
| 2014 | 3 | 6 |
| 2015 | 1 | 11 |
| 2016 | 7 | 4 |
| 2017 | 7 | 8 |
| 2018 | 8 | 1 |
| 2019 | 4 | 6 |
| 2020 | 3 | 4 |
| 2021 | 3 | 5 |
| 2022 | 5 | 10 |
| 2023 | 7 | 4 |
| 2024 | 5 | 6 |
| 2025 | 6 | 9 |
| 2026 | 8 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Desorbed gas amount testing device and measuring method6 Oct 2026US 12,754,114 B2China Petroleum & Chemical Corporation
- Measurement and control of entrained air and foam in metalworking fluids8 Sep 2026US 12,730,100 B2Quaker Chemical Corporation
- Measurement and control of entrained air and foam in metalworking fluids1 Sep 2026US 12,724,021 B2Quaker Chemical Corporation
- System and method for quantitatively measuring gases generated by a battery cell or battery cell component as a function of time during testing21 Jul 2026US 12,687,475 B2GM Global Technology Operations LLC
- Container for determining the quantity of CO2 absorbed and/or expelled by a sample of matter over time5 May 2026US 12,618,820 B2Lesaffre Et Compagnie
- Pressure-based method to determine instability temperature29 Jan 2026US 2026/0029318 A1Valero Services, Inc.
- Method for inverting true mass content of water ice in lunar soil using lunar soil water molecule analyzer23 Oct 2025US 2025/0327730 A1Hefei Institutes of Physical Science, CAS
- Concentration measurement device, concentration measurement method, starting material vaporization system, and concentration measurement method for starting material vaporization system2 Oct 2025US 2025/0305922 A1HORIBA STEC, Co., Ltd.
- Desorbed gas amount testing device and measuring method10 Jul 2025US 2025/0224320 A1China Petroleum & Chemical Corporation
- System and method for quantitatively measuring gases generated by a battery cell or battery cell component as a function of time during testing12 Jun 2025US 2025/0189421 A1GM Global Technology Operations LLC
Most cited
By later US patents
- Method and apparatus for pressure, volume, and temperature measurement and characterization of subsurface formations108US 5,473,939 AWestern Atlas International, Inc. · 1995
- Determining fluid properties from pressure, volume and temperature measurements made by electric wireline formation testing tools85US 5,635,631 AWestern Atlas International, Inc. · 1997
- Landfill gas production testing and extraction method81US 5,063,519 APacific Energy · 1991
- Apparatus for measuring outgassing of volatile materials from an object63US 6,125,687 AInternational Business Machines Corporation · 2000
- Fluid flow rate analysis method for wireline formation testing tools61US 5,708,204 AWestern Atlas International, Inc. · 1998