B29D 23/003
Pipe joints
Official title: {Pipe joints, e.g. straight joints}
B29D23/003 (Pipe joints) appears on 235 US grants and 140 published applications in this corpus.
Search patents in B29D- Granted patents
- 235
- Published applications
- 140
- Assignees
- 185
- Inventors
- 402
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 7 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 11 | 0 |
| 1987 | 10 | 0 |
| 1988 | 6 | 0 |
| 1989 | 9 | 0 |
| 1990 | 9 | 0 |
| 1991 | 2 | 0 |
| 1992 | 9 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 10 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 3 | 4 |
| 2003 | 4 | 3 |
| 2004 | 4 | 3 |
| 2005 | 1 | 5 |
| 2006 | 3 | 1 |
| 2007 | 1 | 0 |
| 2008 | 2 | 3 |
| 2009 | 1 | 7 |
| 2010 | 2 | 4 |
| 2011 | 0 | 2 |
| 2012 | 4 | 5 |
| 2013 | 1 | 6 |
| 2014 | 2 | 8 |
| 2015 | 4 | 10 |
| 2016 | 5 | 11 |
| 2017 | 7 | 6 |
| 2018 | 7 | 6 |
| 2019 | 4 | 5 |
| 2020 | 8 | 8 |
| 2021 | 6 | 12 |
| 2022 | 6 | 5 |
| 2023 | 3 | 5 |
| 2024 | 9 | 9 |
| 2025 | 8 | 10 |
| 2026 | 5 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Constant strain PEX expansion tool head1 Sep 2026US 12,722,338 B2Zurn Water, LLC
- Flow-optimized line connector, and line connector assembly26 May 2026US 12,638,118 B2Norma Germany GmbH
- Monitoring cable integrity during pipeline manufacture17 Mar 2026US 12,576,603 B2Acergy France SAS
- Method of joining pipes and apparatus for facilitating the same13 Jan 2026US 12,523,329 B2
- Polymer pipe, a pipe joint insert device, a pipe joint assembly, and methods of forming same6 Jan 2026US 12,516,764 B2Westlake Pipe & Fittings Corporation
- Method of joining pipes and apparatus for facilitating the same16 Apr 2026US 2026/0104122 A1
- Method for producing pre-insulated fittings25 Dec 2025US 2025/0387990 A1Georg Fischer Rohrleitungssysteme AG
- Constant strain pex expansion tool head4 Sep 2025US 2025/0276486 A1Zurn Water, LLC
- Aircraft Wing With Multi-Tube Structure5 Jun 2025US 2025/0178713 A1Joby Aero, Inc.
- Method of manufacturing a measuring tube of a fluid measuring means22 May 2025US 2025/0162236 A1Amvalor
Most cited
By later US patents
- Percutaneous vascular access portal and catheter294US 4,318,401 APresident and Fellows of Harvard College · 1982
- Pipe fittings108US 6,406,063 B1Fina Research, S. A. · 2002
- Multi-furcated ePTFE grafts and stent-graft prostheses and methods of making the same57US 8,257,431 B2Boston Scientific Scimed, Inc. · 2012
- Method for joining substrates utilizing coupling means53US 4,092,193 ARaychem Corporation · 1978
- Heat weldable, thermoplastic fitting49US 3,943,334 AVon Roll AG · 1976