B21H 1/02
Discs
Official title: discs; disc wheels
B21H1/02 (Discs) appears on 127 US grants and 43 published applications in this corpus.
Search patents in B21H- Granted patents
- 127
- Published applications
- 43
- Assignees
- 74
- Inventors
- 205
- Latest grant
- 16 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 12 | 0 |
| 2001 | 6 | 4 |
| 2002 | 12 | 1 |
| 2003 | 5 | 2 |
| 2004 | 1 | 2 |
| 2005 | 3 | 2 |
| 2006 | 2 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 2 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 2 |
| 2015 | 2 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 5 |
| 2020 | 2 | 6 |
| 2021 | 5 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method and device for the machining of the wheel running surface of wheels for rail vehicles16 Jan 2024US 11,872,640 B2Hegenscheidt-MFD GmbH & Co. KG
- Rotational symmetrical and non-symmetrical plastic forming machine27 Jun 2023US 11,684,967 B2Tusas Motor Sanayii Anonim Sirketi
- Vehicle wheel disc and manufacturing method of vehicle wheel disc5 Oct 2021US 11,135,641 B2Central Motor Wheel Co., Ltd.
- Wheel rolling device23 Mar 2021US 10,953,458 B2CITIC Dicastal Co., Ltd.
- Spinning apparatus and spinning method16 Mar 2021US 10,946,428 B2Topy Kogyo Kabushiki Kaisha
- Disc for a multi-disc clutch, multi-disc clutch having the disc, and method for producing the disc26 May 2022US 2022/0163069 A1ZF Friedrichshafen AG
- Vehicle wheel disc and manufacturing method of vehicle wheel disc2 Dec 2021US 2021/0370386 A1Central Motor Wheel Co., Ltd.
- Method And Device For The Machining Of The Wheel Running Surface Of Wheels For Rail Vehicles12 Nov 2020US 2020/0353540 A1Hegenscheidt-MFD GmbH & Co. KG
- Vehicle wheel disc and manufacturing method of vehicle wheel disc9 Apr 2020US 2020/0108435 A1Central Motor Wheel Co., Ltd.
- Method And Device For The Machining Of The Wheel Running Surface Of Wheels For Rail Vehicles19 Mar 2020US 2020/0086392 A1Hegenscheidt-MFD GmbH & Co. KG
Most cited
By later US patents
- Pulley with a high-friction groove surface and manufacturing method therefor29US 4,913,689 AMitsubishi Denki Kabushiki Kaisha · 1990
- Poly-V pulleys24US 4,518,374 AKabushiki Kaisha Kanemitsu · 1985
- Method for manufacturing pulley with a high-friction groove surface20US 4,905,361 AMitsubishi Denki Kabushiki Kaisha · 1990
- Pulley splitting machine19US 4,078,410 AEaton Corporation · 1978
- Hub and pulley with radially inward annular collar16US 5,951,422 AThe Gates Corporation · 1999