B21K 1/767
Toothed racks
Official title: {Toothed racks}
B21K1/767 (Toothed racks) appears on 87 US grants and 81 published applications in this corpus.
Search patents in B21K- Granted patents
- 87
- Published applications
- 81
- Assignees
- 43
- Inventors
- 137
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 3 |
| 2002 | 3 | 5 |
| 2003 | 4 | 6 |
| 2004 | 6 | 2 |
| 2005 | 3 | 3 |
| 2006 | 1 | 1 |
| 2007 | 3 | 5 |
| 2008 | 0 | 4 |
| 2009 | 1 | 3 |
| 2010 | 1 | 1 |
| 2011 | 3 | 2 |
| 2012 | 4 | 7 |
| 2013 | 4 | 4 |
| 2014 | 4 | 1 |
| 2015 | 3 | 3 |
| 2016 | 3 | 2 |
| 2017 | 0 | 3 |
| 2018 | 3 | 4 |
| 2019 | 3 | 7 |
| 2020 | 1 | 8 |
| 2021 | 6 | 2 |
| 2022 | 4 | 2 |
| 2023 | 0 | 0 |
| 2024 | 3 | 3 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rack bar and steering device7 Jul 2026US 12,673,359 B2Hitachi Astemo, Ltd.
- Steering rack and method of manufacturing the same29 Apr 2025US 12,286,163 B2Steering Solutions IP Holding Corporation
- Method of manufacturing steering shaft8 Oct 2024US 12,109,608 B2Hitachi Astemo, Ltd.
- Apparatus and method for manufacturing rack bar6 Aug 2024US 12,053,816 B2Neturen Co., Ltd.
- Manufacturing method for hollow rack bar and hollow rack bar manufacturing apparatus14 May 2024US 11,980,929 B2Neturen Co., Ltd.
- Rack bar and steering device14 Nov 2024US 2024/0375170 A1Hitachi Astemo, Ltd.
- Method for producing a component which has a toothing profile, and tool device7 Nov 2024US 2024/0367218 A1Schaeffler Technologies AG & Co. KG
- Apparatus and method for manufacturing rack bar24 Oct 2024US 2024/0351094 A1Neturen Co., Ltd.
- Method of manufacturing steering shaft8 Sep 2022US 2022/0280995 A1Hitachi Astemo, Ltd.
- Linear motion shaft for steering device, steering device, and method of manufacturing these10 Mar 2022US 2022/0072602 A1Nsk Ltd.
Most cited
By later US patents
- Electric power steering apparatus28US 6,543,569 B1Honda Giken Kogyo Kabushiki Kaisha · 2003
- Rack gear and method of making the same26US 4,133,221 ATRW Inc. · 1979
- Method of producing a rack from pipe material and a rack thus produced26US 4,598,451 AKokan Kako Co., Ltd. · 1986
- Electric power steering apparatus26US 6,390,230 B1Honda Giken Kogyo Kabushiki Kaisha · 2002
- Steering rack shaft and method of manufacturing the same21US 5,473,960 AKabushiki Kaisha Yamada Seisakusho · 1995