G01M 3/12
By observing elastic covers or coatings
Official title: by observing elastic covers or coatings, e.g. soapy water
G01M3/12 (By observing elastic covers or coatings) appears on 71 US grants and 59 published applications in this corpus.
Search patents in G01M- Granted patents
- 71
- Published applications
- 59
- Assignees
- 77
- Inventors
- 175
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 0 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 3 | 4 |
| 2012 | 1 | 2 |
| 2013 | 2 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 6 |
| 2016 | 0 | 2 |
| 2017 | 2 | 3 |
| 2018 | 3 | 2 |
| 2019 | 3 | 3 |
| 2020 | 3 | 9 |
| 2021 | 7 | 2 |
| 2022 | 1 | 4 |
| 2023 | 3 | 3 |
| 2024 | 1 | 3 |
| 2025 | 6 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device for checking a seal of a package, and method for checking a seal23 Dec 2025US 12,504,343 B2Syntegon Technology GmbH
- Vacuum relief valve for railroad tank car16 Dec 2025US 12,498,056 B2Valve & Machining LLC
- Leakage detection for pressurized fuel tanks7 Oct 2025US 12,436,056 B2Airbus Operations GmbH
- Forced air leakage testing assembly7 Oct 2025US 12,436,057 B2
- Methods of determining flow rates of gas leaks in a pressurized gas system22 Jul 2025US 12,366,499 B2Duke Energy Corporation
- Vacuum Relief Valve for Railroad Tank Car25 Jun 2026US 2026/0177165 A1McKenzie Valve & Machining LLC
- Re-using distributed fiber optic sensing to detect leaks at multiple locations3 Apr 2025US 2025/0110008 A1Chevron U.S.A.Inc.
- Forced Air Leakage Testing Assembly6 Feb 2025US 2025/0044178 A1
- Apparatus and method for checking for leakage of refrigerant gas in air conditioning system12 Dec 2024US 2024/0410779 A1A Factory Inc.
- Vacuum Relief Valve for Railroad Tank Car29 Feb 2024US 2024/0068594 A1McKenzie Valve & Machining LLC
Most cited
By later US patents
- Method for testing integrity of elastomeric protective barriers60US 5,493,899 ADonald Guthrie Foundation for Education and Research · 1996
- Method and apparatus for testing relative permeability of materials57US 4,979,390 A1990
- Connecting device for pipe assemblies56US 5,398,976 AEnviron Products, Inc. · 1995
- Process and apparatus for testing the tightness of seam joints of synthetic resin sheets by means of vacuum29US 4,002,055 ADynamit Nobel Aktiengesellschaft · 1977
- Connecting device for pipe assemblies28US 6,029,505 AEnviron Products, Inc. · 2000