B29D 30/48
Bead-rings or bead-cores
Official title: Bead-rings or bead-cores (from wire B21F37/00); Treatment thereof prior to building the tyre
B29D30/48 (Bead-rings or bead-cores) appears on 281 US grants and 290 published applications in this corpus.
Search patents in B29D- Granted patents
- 281
- Published applications
- 290
- Assignees
- 83
- Inventors
- 523
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 14 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 5 |
| 2002 | 5 | 5 |
| 2003 | 4 | 6 |
| 2004 | 5 | 2 |
| 2005 | 4 | 4 |
| 2006 | 3 | 3 |
| 2007 | 2 | 7 |
| 2008 | 1 | 7 |
| 2009 | 2 | 11 |
| 2010 | 2 | 13 |
| 2011 | 5 | 5 |
| 2012 | 3 | 11 |
| 2013 | 1 | 11 |
| 2014 | 10 | 18 |
| 2015 | 7 | 27 |
| 2016 | 9 | 12 |
| 2017 | 12 | 36 |
| 2018 | 14 | 15 |
| 2019 | 15 | 18 |
| 2020 | 17 | 27 |
| 2021 | 23 | 11 |
| 2022 | 6 | 14 |
| 2023 | 3 | 6 |
| 2024 | 13 | 8 |
| 2025 | 4 | 7 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B29D 2030/482Applying fillers or apexes to bead coresIndexing code104
- B29D 2030/487Forming devices for manufacturing the beadsIndexing code84
- B29D 30/50Covering38
- B29D 2030/481Fillers or apexesIndexing code26
- B29D 2030/485The bead cores being made using a band containing a plurality ofIndexing code19
- B29D 2030/486Additional components for the tyre bead areasIndexing code18
- B29D 2030/483Treating the bead cores to increase rubber adhesionIndexing code15
- B29D 2030/488Clamping the wires on the forming devicesIndexing code15
Recent patents
- Method and apparatus for forming an apex17 Jun 2025US 12,330,387 B2The Goodyear Tire & Rubber Company
- Cutting device and method for cutting a strip and production line for applying an apex to a bead25 Mar 2025US 12,257,797 B2Vmi Holland B .V.
- Cable bead, tire using cable bead, cable bead manufacturing method, and cable bead manufacturing device18 Feb 2025US 12,227,034 B2Towaron Trading Co., Ltd.
- Method for manufacturing pneumatic tire14 Jan 2025US 12,194,703 B2Toyo Tire Corporation
- Bead core for agricultural tire12 Nov 2024US 12,138,968 B2Compagnie Generale De Etablissements Michelin
- Pneumatic tire, tire processing machine, wheel, method, control device, and computer program product3 Sep 2026US 2026/0257441 A1
- Method for switching over a tire manufacturing line, and tire manufacturing line and computer program product configured for the same9 Oct 2025US 2025/0312984 A1Vmi Holland B .V.
- Joining a tyre base layer2 Oct 2025US 2025/0303657 A1
- Manufacturing continuous belt of tyre base layer2 Oct 2025US 2025/0303660 A1
- Tire building method and mechanical drum10 Jul 2025US 2025/0222669 A1Mesnac Co., Ltd.
Most cited
By later US patents
- Tire containing at least part of an electrical current generator intended for the supply of sensors and/or other electrical devices present within the tire, and method for manufacture the said tire32US 6,470,933 B1Pirelli Pneumatici S.p.A. · 2002
- Metal tire bead manufacturing method29US 5,820,717 ABridgestone Corporation · 1998
- Bead appex applying method and device25US 4,933,034 ASumitomo Rubber Industries, Ltd. · 1990
- Apparatus for applying an apex filler to a bead ring22US 5,735,995 AThe Steelastic Company · 1998
- Apparatuses for applying elastomeric fillers to tire bead-cores21US 4,354,892 ASocieta' Pneumatici Pirelli S.p.A. · 1982