G01M 3/40
Investigating fluid-tightness of structures: by using electric means
Official title: by using electric means, e.g. by observing electric discharges
G01M3/40 (Investigating fluid-tightness of structures: by using electric means) appears on 314 US grants and 307 published applications in this corpus.
Search patents in G01M- Granted patents
- 314
- Published applications
- 307
- Assignees
- 249
- Inventors
- 744
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 7 | 0 |
| 1989 | 0 | 0 |
| 1990 | 7 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 1 |
| 2002 | 5 | 9 |
| 2003 | 7 | 2 |
| 2004 | 4 | 6 |
| 2005 | 2 | 7 |
| 2006 | 9 | 5 |
| 2007 | 2 | 3 |
| 2008 | 1 | 2 |
| 2009 | 4 | 5 |
| 2010 | 1 | 3 |
| 2011 | 4 | 2 |
| 2012 | 2 | 4 |
| 2013 | 1 | 11 |
| 2014 | 3 | 18 |
| 2015 | 11 | 9 |
| 2016 | 7 | 13 |
| 2017 | 15 | 11 |
| 2018 | 18 | 22 |
| 2019 | 20 | 38 |
| 2020 | 36 | 29 |
| 2021 | 19 | 22 |
| 2022 | 17 | 13 |
| 2023 | 17 | 16 |
| 2024 | 14 | 25 |
| 2025 | 18 | 19 |
| 2026 | 4 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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