B29C 66/547
Joining several hollow-preforms
Official title: {Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles, e.g. endless tubes}
B29C66/547 (Joining several hollow-preforms) appears on 145 US grants and 149 published applications in this corpus.
Search patents in B29C- Granted patents
- 145
- Published applications
- 149
- Assignees
- 136
- Inventors
- 343
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
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| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
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| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 5 |
| 2003 | 2 | 3 |
| 2004 | 4 | 6 |
| 2005 | 0 | 5 |
| 2006 | 4 | 3 |
| 2007 | 2 | 6 |
| 2008 | 3 | 7 |
| 2009 | 2 | 4 |
| 2010 | 3 | 6 |
| 2011 | 6 | 9 |
| 2012 | 6 | 6 |
| 2013 | 1 | 3 |
| 2014 | 9 | 8 |
| 2015 | 4 | 6 |
| 2016 | 3 | 6 |
| 2017 | 6 | 11 |
| 2018 | 5 | 6 |
| 2019 | 11 | 12 |
| 2020 | 5 | 8 |
| 2021 | 5 | 7 |
| 2022 | 1 | 7 |
| 2023 | 4 | 7 |
| 2024 | 4 | 3 |
| 2025 | 3 | 4 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Polyurethane gauge wheel tire21 Jul 2026US 12,686,231 B2Gallagher Corporation
- Multi-piece assembly for a tubular composite body27 Jan 2026US 12,534,193 B2Textron Innovations Inc.
- Method for producing a fiber-composite hollow component, and fiber-composite hollow component10 Jun 2025US 12,325,195 B2Deutsches Zentrum für Luft- und Raumfahrt e. V.
- Method for producing a hollow profile component, mold tool and hollow profile component25 Mar 2025US 12,257,762 B2Odenwald-Chemie GmbH
- Polyurethane gauge wheel tire4 Mar 2025US 12,240,277 B2Gallagher Corporation
- Apparatus and method for folding sealing part of pouch type secondary battery19 Jun 2025US 2025/0201894 A1LG Energy Solution, Ltd.
- Thermally broken structural tube1 May 2025US 2025/0135519 A1
- Polyurethane gauge wheel tire27 Mar 2025US 2025/0100329 A1Gallagher Corporation
- Bonding jig and bonding method27 Feb 2025US 2025/0065575 A1NHK Spring Co., Ltd.
- Formed sheet membrane element and filtration system3 Oct 2024US 2024/0325979 A1Fibracast Ltd.
Most cited
By later US patents
- Exhaust muffler174US 4,880,078 AHonda Giken Kogyo Kabushiki Kaisha · 1989
- Overlapping welds for catheter constructions112US 5,772,641 AMedi-Dyne Inc. · 1998
- Overlapping welds for catheter constructions86US 6,168,588 AMedi-Dyne Inc. · 2001
- Overlapping welds for catheter constructions85US 5,980,505 AMedi-Dyne Ince. · 1999
- Secondary containment system and method82US 5,022,685 A1991