F16H 55/30
Chain-wheels
F16H55/30 (Chain-wheels) appears on 678 US grants and 649 published applications in this corpus.
Search patents in F16H- Granted patents
- 678
- Published applications
- 649
- Assignees
- 273
- Inventors
- 859
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 19 | 0 |
| 2000 | 14 | 0 |
| 2001 | 13 | 5 |
| 2002 | 12 | 7 |
| 2003 | 7 | 23 |
| 2004 | 4 | 15 |
| 2005 | 9 | 18 |
| 2006 | 13 | 24 |
| 2007 | 8 | 18 |
| 2008 | 5 | 21 |
| 2009 | 11 | 21 |
| 2010 | 7 | 24 |
| 2011 | 17 | 16 |
| 2012 | 10 | 9 |
| 2013 | 20 | 16 |
| 2014 | 19 | 18 |
| 2015 | 12 | 31 |
| 2016 | 25 | 39 |
| 2017 | 29 | 54 |
| 2018 | 41 | 69 |
| 2019 | 42 | 52 |
| 2020 | 49 | 50 |
| 2021 | 47 | 31 |
| 2022 | 38 | 22 |
| 2023 | 39 | 28 |
| 2024 | 33 | 17 |
| 2025 | 20 | 14 |
| 2026 | 9 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Rear sprocket5 May 2026US 12,617,491 B2Shimano Inc.
- Segmented gear synchronization system28 Apr 2026US 12,612,957 B1
- Split topshaft sprocket for agricultural headers3 Mar 2026US 12,564,135 B2CNH Industrial America LLC
- System and method for a captive sprocket in an engine24 Feb 2026US 12,560,223 B2Cummins Inc.
- Power transmission device17 Feb 2026US 12,553,497 B2Honda Motor Co., Ltd.
- Bicycle Sprocket24 Sep 2026US 2026/0287051 A1Campagnolo S.r.l.
- Replacable tooth sprocket6 Aug 2026US 2026/0226972 A1Mhj USA, LLC
- Front chainring assembly11 Jun 2026US 2026/0159190 A1Sram, LLC
- Rotor attachments for electric motors21 May 2026US 2026/0142524 A1Donut Lab Development Oü
- Silent chain and transmission mechanism having the same12 Feb 2026US 2026/0043456 A1Kmc Chain Industrial Co., Ltd.
Most cited
By later US patents
- Gear and method for making the same115US 4,589,860 ASKF Kugellagerfabriken GmbH · 1986
- Chain drive including sprocket having alternate wide and narrow teeth108US 4,174,642 AGehl Company · 1979
- Chain noise preventing device93US 4,261,214 AHonda Giken Kogyo Kabushiki Kaisha · 1981
- Chain sprocket with opposite frangible side guide plates84US 4,240,303 A1980
- Bicycle sprocket wheel68US 4,144,773 A1979