B29C 55/22
Shaping by stretching: of tubes
Official title: of tubes {(B29C61/08 takes precedence)}
B29C55/22 (Shaping by stretching: of tubes) appears on 383 US grants and 265 published applications in this corpus.
Search patents in B29C- Granted patents
- 383
- Published applications
- 265
- Assignees
- 212
- Inventors
- 634
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 7 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 9 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 0 |
| 1994 | 9 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 15 | 0 |
| 1999 | 10 | 0 |
| 2000 | 13 | 0 |
| 2001 | 21 | 4 |
| 2002 | 9 | 11 |
| 2003 | 11 | 9 |
| 2004 | 6 | 10 |
| 2005 | 6 | 10 |
| 2006 | 2 | 10 |
| 2007 | 5 | 11 |
| 2008 | 4 | 5 |
| 2009 | 4 | 8 |
| 2010 | 6 | 11 |
| 2011 | 12 | 9 |
| 2012 | 11 | 17 |
| 2013 | 11 | 12 |
| 2014 | 10 | 22 |
| 2015 | 11 | 15 |
| 2016 | 14 | 14 |
| 2017 | 10 | 13 |
| 2018 | 12 | 10 |
| 2019 | 17 | 14 |
| 2020 | 2 | 8 |
| 2021 | 8 | 9 |
| 2022 | 12 | 15 |
| 2023 | 9 | 3 |
| 2024 | 8 | 7 |
| 2025 | 5 | 3 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Tapered implantable device and methods for making such devices7 Jul 2026US 12,672,949 B2W. L. Gore & Associates, Inc.
- Parison former2 Jun 2026US 12,643,282 B2Blockwise Engineering LLC
- Pipe for transport of chlorinated water28 Apr 2026US 12,612,982 B2Sabic Global Technologies B.V.
- Methods and apparatus for fabricating porous three-dimensional tubular scaffolds13 Jan 2026US 12,521,950 B2Amt Medical B.V.
- Heat-shrinkable tube, heat-shrinkable sheet, connector, and method for manufacturing heat-shrinkable tube15 Jul 2025US 12,362,552 B2Sumitomo Electric Fine Polymer, Inc.
- System for biaxial expansion of polymeric pipe2 Jul 2026US 2026/0184009 A1Wavin B. V.
- Processing of expanded polyethylene above the melt point18 Jun 2026US 2026/0167793 A1W. L. Gore & Associates, Inc.
- Electrophoresis device, micro-coil fiber, sweeping thermal-drawing device, method of manufacturing fiber, and fiber14 May 2026US 2026/0133161 A1Tohoku University
- Pipe for transport of chlorinated water19 Mar 2026US 2026/0078846 A1Sabic Global Technologies B.V.
- Geothermal heating and cooling system19 Feb 2026US 2026/0049743 A1Sabic Global Technologies B.V.
Most cited
By later US patents
- Method of making a stent-graft covered with expanded polytetrafluoroethylene318US 5,788,626 ASchneider (USA) Inc. · 1998
- Endoluminal graft with integral structural support and method for making same267US 6,053,943 AImpra, Inc. · 2000
- Radially expandable tubular polytetrafluoroethylene grafts and method of making same250US 6,039,755 AImpra, Inc., a Division of C.R. Bard, Inc. · 2000
- Method for lining a casing225US 5,454,419 APolybore, Inc. · 1995
- Method of molding a dual plastic shotshell casing186US 5,021,206 AOlin Corporation · 1991