B29D 30/0654
Flexible cores therefor
Official title: {Flexible cores therefor, e.g. bladders, bags, membranes, diaphragms (elastic cores or mandrels for shaping of plastics B29C33/505; bags for isostatic pressing in compression moulding B29C43/12, B29C43/3642)}
B29D30/0654 (Flexible cores therefor) appears on 137 US grants and 156 published applications in this corpus.
Search patents in B29D- Granted patents
- 137
- Published applications
- 156
- Assignees
- 67
- Inventors
- 343
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 0 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 3 |
| 2006 | 3 | 5 |
| 2007 | 0 | 3 |
| 2008 | 2 | 8 |
| 2009 | 1 | 4 |
| 2010 | 2 | 4 |
| 2011 | 5 | 8 |
| 2012 | 2 | 4 |
| 2013 | 2 | 9 |
| 2014 | 3 | 6 |
| 2015 | 7 | 7 |
| 2016 | 5 | 8 |
| 2017 | 3 | 14 |
| 2018 | 4 | 11 |
| 2019 | 10 | 9 |
| 2020 | 14 | 21 |
| 2021 | 5 | 4 |
| 2022 | 5 | 8 |
| 2023 | 2 | 5 |
| 2024 | 5 | 4 |
| 2025 | 8 | 2 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29D 2030/0655Constructional or chemical features of the flexible coresIndexing code84
- B29D 2030/0659Details or accessories for the flexible cores not otherwise provided forIndexing code31
- B29D 2030/0657Removing the vulcanizing media from the flexible coresIndexing code3
- B29D 2030/0658Venting devices for the flexible coresIndexing code2
Recent patents
- Pneumatic tire curing method using a curing membrane comprising three drainage areas arranged in increasing order of depth5 May 2026US 12,617,167 B2Compagnie Generale Des Etablissements Michelin
- Method for vulcanizing a green tire using an organopolysiloxane-based mold release agent lubricant composition21 Oct 2025US 12,447,704 B2Elkem Silicones France SAS
- Pneumatic tire and method for manufacturing the same9 Sep 2025US 12,409,686 B2The Yokohama Rubber Co., Ltd.
- Pneumatic tire and method of manufacturing the same2 Sep 2025US 12,403,632 B2The Yokohama Rubber Co., Ltd.
- Laminate based on silicone rubber compositions2 Sep 2025US 12,404,406 B2Compagnie Generale Des Etablissements Michelin
- All-nitrogen circulating heating and vulcanization system and vulcanization method27 Aug 2026US 2026/0249575 A1ARP Technologies (Suzhou) Co., Ltd
- Leak detection method with time delay for detecting a leak that affects a tire curing membrane or the inflation circuit thereof30 Jul 2026US 2026/0219126 A1Compagnie Generale Des Etablissements Michelin
- A filler composition23 Jul 2026US 2026/0209588 A1
- System and method for laser cleaning an innerliner of a tire18 Jun 2026US 2026/0166829 A1The Goodyear Tire & Rubber Company
- Tire curing press12 Mar 2026US 2026/0070294 A1Himile CNC Machine Tool(Shandong) CO., LTD.
Most cited
By later US patents
- Tire assembling and vulcanization33US 5,853,526 ASedepro · 1998
- Tire curing press mechanism27US 4,872,822 APirelli Coordinamento Pneumatici S.p.A. · 1989
- Reinforced tire curing bladder16US 5,062,781 AFirelli Armstrong Tire Corporation · 1991
- Tire assembling and vulcanization16US 6,203,641 B1Sedepro · 2001
- Flexible annular core used for the production of hollow toroidal rubber shells14US 3,932,088 ABridgestone Tire Company Limited · 1976