B29C 66/52211
For making endless tubular articles
Official title: {for making endless tubular articles, e.g. endless inner tubes}
B29C66/52211 (For making endless tubular articles) appears on 12 US grants and 13 published applications in this corpus.
Search patents in B29C- Granted patents
- 12
- Published applications
- 13
- Assignees
- 10
- Inventors
- 22
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 2 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Annular seal material and manufacturing method25 Aug 2026US 12,716,500 B2Valqua, Ltd.
- Welding method22 Mar 2022US 11,279,096 B2TPU Plus GmbH
- Device and method for providing a continuous tubular foil23 Aug 2016US 9,421,711 B2Fuji Seal International, Inc.
- Cold static gasket for complex geometrical sealing applications3 Mar 2015US 8,966,824 B2Federal-Mogul World Wide, Inc.
- Flashless welding method and apparatus10 Jun 2014US 8,747,584 B2SpringSeal, Inc.
- Annular seal material and manufacturing method19 Jun 2025US 2025/0198518 A1Valqua, Ltd.
- Ring dam and method for manufacturing a ring dam21 Jan 2021US 2021/0018094 A1R & D Plastics of Hickory, Ltd.
- Multilayer inner tube25 Jun 2020US 2020/0198399 A1
- Welding method12 Mar 2020US 2020/0079033 A1TPU Plus GmbH
- Cardiovascular Catheter13 Jun 2019US 2019/0175875 A1Siemens Medical Solutions USA, Inc.
Most cited
By later US patents
- Process to manufacture tubular articles resembling wood, cane, bamboo, reed, wicker, rattan, rush, and the like43US 4,231,834 A1980
- Method of forming a seal9US 4,755,244 AGeneral Connectors Corporation · 1988
- Flashless welding method and apparatus8US 8,747,584 B2SpringSeal, Inc. · 2014
- Hand projectile, method of manufacture and game played therewith4US 5,002,286 A1991
- Belt welding apparatus and method4US 7,730,921 B22010