B29C 33/485
Cores or mandrels
Official title: {cores or mandrels (collapsible mandrels for shaping tube ends B29C57/02; collapsible mandrels for winding and joining B29C53/824)}
B29C33/485 (Cores or mandrels) appears on 338 US grants and 301 published applications in this corpus.
Search patents in B29C- Granted patents
- 338
- Published applications
- 301
- Assignees
- 190
- Inventors
- 725
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 3 |
| 2003 | 3 | 2 |
| 2004 | 1 | 6 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 2 | 3 |
| 2008 | 2 | 6 |
| 2009 | 4 | 10 |
| 2010 | 6 | 19 |
| 2011 | 10 | 10 |
| 2012 | 4 | 20 |
| 2013 | 11 | 25 |
| 2014 | 10 | 14 |
| 2015 | 25 | 16 |
| 2016 | 19 | 22 |
| 2017 | 14 | 19 |
| 2018 | 17 | 12 |
| 2019 | 11 | 13 |
| 2020 | 16 | 25 |
| 2021 | 24 | 10 |
| 2022 | 16 | 19 |
| 2023 | 15 | 14 |
| 2024 | 15 | 9 |
| 2025 | 11 | 13 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for forming a ceramic sandwich-structured composite component22 Sep 2026US 12,741,914 B2General Electric Company
- Equipment and process for making a structural element in composite material11 Aug 2026US 12,703,157 B2Leonardo S.P.A.
- Catheter tip structure and method of manufacture2 Jun 2026US 12,642,939 B2Bard Access Systems, Inc.
- Method of making a simulated airway19 May 2026US 12,629,868 B2Safeguard Medical Holdco, LLC
- Method for manufacturing a complex composite part using a single-use inflatable mandrel10 Mar 2026US 12,570,056 B2Airbus Operations GmbH
- Catheter Tip Structure and Method of Manufacture24 Sep 2026US 2026/0284355 A1Bard Access Systems, Inc.
- Mandrel for producing a hollow composite component of a wind turbine rotor blade27 Aug 2026US 2026/0249566 A1Lm Wind Power A/S
- Tool design methods and apparatus30 Jul 2026US 2026/0216927 A1
- Special tooling for fabricating vanes16 Jul 2026US 2026/0201804 A1Rtx Corporation
- Tooling assembly for forming and curing a composite preform in a single process step and a method14 May 2026US 2026/0131546 A1The Boeing Company
Most cited
By later US patents
- Method of making an artificial airway device214US 5,391,248 A1995
- Nasal and oral cannula having two capabilities and method of producing same69US 7,832,400 B2Salter Labs · 2010
- Method of fabricating a complex part made of composite material58US 5,286,438 AUnited Technologies Corporation · 1994
- Wax pattern mold57US 5,417,559 ACallaway Golf Company · 1995
- Wax pattern molding process52US 5,547,630 ACallaway Golf Company · 1996