B29C 65/8246
Pressure tests
Official title: {Pressure tests, e.g. hydrostatic pressure tests}
B29C65/8246 (Pressure tests) appears on 142 US grants and 154 published applications in this corpus.
Search patents in B29C- Granted patents
- 142
- Published applications
- 154
- Assignees
- 121
- Inventors
- 369
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 3 |
| 2003 | 1 | 1 |
| 2004 | 2 | 4 |
| 2005 | 2 | 6 |
| 2006 | 2 | 7 |
| 2007 | 3 | 5 |
| 2008 | 2 | 4 |
| 2009 | 3 | 4 |
| 2010 | 4 | 9 |
| 2011 | 5 | 6 |
| 2012 | 4 | 11 |
| 2013 | 4 | 10 |
| 2014 | 5 | 4 |
| 2015 | 5 | 11 |
| 2016 | 5 | 7 |
| 2017 | 8 | 9 |
| 2018 | 6 | 15 |
| 2019 | 7 | 5 |
| 2020 | 12 | 1 |
| 2021 | 5 | 13 |
| 2022 | 5 | 7 |
| 2023 | 3 | 1 |
| 2024 | 6 | 4 |
| 2025 | 3 | 6 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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- Methods for forming welds between thermoplastic materials16 Oct 2025US 2025/0319669 A1Board of Trustees of Michigan State University
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Most cited
By later US patents
- Pipe fittings108US 6,406,063 B1Fina Research, S. A. · 2002
- Double wall piping system99US 4,932,257 A1990
- Secondary containment system68US 4,805,444 A1989
- Seal testable container structure67US 5,156,329 AAmerican National Can Company · 1992
- Secondary containment system using flexible piping50US 5,040,408 ATotal Containment, Inc. · 1991