B21D 53/34
Brake drums
Official title: brake drums
B21D53/34 (Brake drums) appears on 29 US grants and 15 published applications in this corpus.
Search patents in B21D- Granted patents
- 29
- Published applications
- 15
- Assignees
- 25
- Inventors
- 56
- Latest grant
- 30 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 0 | 0 |
| 2013 | 2 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 2 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for manufacturing vehicle wheel30 May 2023US 11,660,656 B2Central Motor Wheel Co., Ltd.
- Method for manufacturing brake disc and brake disc17 Jan 2023US 11,554,407 B2Sunstar Engineering Inc.
- Disc rotor, production apparatus therefor, roller, and disc rotor production method19 Jan 2021US 10,895,294 B2Aisin Takaoka Co., Ltd.
- Methods of forming components utilizing ultra-high strength steel and components formed thereby8 Sep 2020US 10,767,756 B2MAGNA Powertrain AG & Co KG
- Method for forming a pressed component2 Oct 2018US 10,086,423 B2Kabushiki Kaisha F.C.C.
- Squealer band design for steel shell brake drums28 May 2026US 2026/0146657 A1Wheelnz LLC
- Method for manufacturing vehicle wheel15 Sep 2022US 2022/0288668 A1Central Motor Wheel Co., Ltd.
- Method for manufacturing brake disc and brake disc24 Mar 2022US 2022/0088667 A1Sunstar Engineering Inc.
- Disc rotor, production apparatus therefor, roller, and disc rotor production method3 Oct 2019US 2019/0301550 A1Aisin Takaoka Co., Ltd.
- Methods of forming components utilizing ultra-high strength steel and components formed thereby13 Apr 2017US 2017/0102067 A1MAGNA Powertrain AG & Co KG
Most cited
By later US patents
- Disc brake piston20US 5,105,917 AKelsey-Hayes Company · 1992
- Method for manufacturing a drum brake shoe18US 4,360,959 AThe Bendix Corporation · 1982
- Clutch drum and apparatus for manufacturing same15US 5,388,474 AHonda Giken Kogyo Kaisha · 1995
- Brake disc and process for producing the same14US 4,126,492 AHonda Giken Kogyo Kabushiki Kaisha · 1978
- Method for producing a magnetic rotatable member for an electromagnetic clutch13US 4,314,472 ASankyo Electric Company Limited · 1982