B29L 2031/24
Pipe joints or couplings
Official title: Pipe joints or couplings (B29L2031/26 takes precedence)
B29L2031/24 (Pipe joints or couplings) appears on 316 US grants and 286 published applications in this corpus.
Search patents in B29L- Granted patents
- 316
- Published applications
- 286
- Assignees
- 264
- Inventors
- 680
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 11 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 7 |
| 2003 | 1 | 5 |
| 2004 | 4 | 12 |
| 2005 | 0 | 15 |
| 2006 | 3 | 6 |
| 2007 | 5 | 4 |
| 2008 | 6 | 10 |
| 2009 | 3 | 9 |
| 2010 | 4 | 15 |
| 2011 | 2 | 7 |
| 2012 | 8 | 16 |
| 2013 | 10 | 9 |
| 2014 | 7 | 5 |
| 2015 | 5 | 12 |
| 2016 | 9 | 13 |
| 2017 | 8 | 12 |
| 2018 | 12 | 22 |
| 2019 | 12 | 13 |
| 2020 | 15 | 21 |
| 2021 | 7 | 12 |
| 2022 | 12 | 14 |
| 2023 | 14 | 20 |
| 2024 | 13 | 14 |
| 2025 | 17 | 8 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Compression collars for coupling a tube to a tube fitting4 Aug 2026US 12,698,854 B2Life Technologies Corporation
- Method and apparatus for reinforcing piping and installing a pipe adapter30 Jun 2026US 12,669,208 B2TruComp Pipe LLC
- Flow-optimized line connector, and line connector assembly26 May 2026US 12,638,118 B2Norma Germany GmbH
- PEX expander24 Feb 2026US 12,558,834 B2Black & Decker Inc.
- Method of joining pipes and apparatus for facilitating the same13 Jan 2026US 12,523,329 B2
- Method of joining pipes and apparatus for facilitating the same16 Apr 2026US 2026/0104122 A1
- Reinforced thermoplastic based welded jointing system and method for thermoset composite pipe joints5 Mar 2026US 2026/0063232 A1Saudi Arabian Oil Company
- Composite connectors and methods of manufacturing the same12 Feb 2026US 2026/0042267 A1Crompton Technology Group Limited
- Systems and methods for vehicle subassembly and fabrication1 Jan 2026US 2026/0001127 A1Divergent Technologies, Inc.
- Carcinogenic-Free Bar Gun18 Dec 2025US 2025/0381738 A1OEM Solutions, Inc.
Most cited
By later US patents
- Secondary containment system and method82US 5,022,685 A1991
- Method for solvent bonding non-porous materials to automatically create variable bond characteristics71US 5,259,894 A1993
- Tongue and groove snap-fit pipe coupling70US 5,007,666 AC & L Development Inc. · 1991
- Quick connect coupling58US 5,542,717 AForm Rite · 1996
- Lining of "Tees" and "Wyes" in pipelines or passageways58US 5,927,341 AInsituform (Netherlands) B. V. · 1999