F16H 55/17
Toothed wheels
Official title: Toothed wheels (worm wheels F16H55/22; chain wheels F16H55/30)
F16H55/17 (Toothed wheels) appears on 1,176 US grants and 1,280 published applications in this corpus.
Search patents in F16H- Granted patents
- 1,176
- Published applications
- 1,280
- Assignees
- 673
- Inventors
- 2,668
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 9 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 9 | 0 |
| 1987 | 16 | 0 |
| 1988 | 11 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 9 | 0 |
| 1992 | 10 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 18 | 0 |
| 2000 | 14 | 0 |
| 2001 | 10 | 4 |
| 2002 | 13 | 18 |
| 2003 | 10 | 17 |
| 2004 | 9 | 33 |
| 2005 | 10 | 20 |
| 2006 | 20 | 20 |
| 2007 | 9 | 24 |
| 2008 | 10 | 21 |
| 2009 | 5 | 25 |
| 2010 | 21 | 45 |
| 2011 | 18 | 32 |
| 2012 | 20 | 39 |
| 2013 | 22 | 50 |
| 2014 | 33 | 48 |
| 2015 | 34 | 56 |
| 2016 | 46 | 87 |
| 2017 | 43 | 68 |
| 2018 | 58 | 83 |
| 2019 | 72 | 94 |
| 2020 | 87 | 106 |
| 2021 | 77 | 93 |
| 2022 | 85 | 88 |
| 2023 | 90 | 59 |
| 2024 | 74 | 56 |
| 2025 | 74 | 51 |
| 2026 | 31 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16H 55/18Special devices for taking up backlash256
- F16H 2055/176Ring gears with inner teethIndexing code174
- F16H 55/171Toothed belt pulleys151
- F16H 2055/173Crown gears, i.e. gears have axially arranged teethIndexing code41
- F16H 2055/178Combined with clutch meansIndexing code39
- F16H 2055/175Specially adapted for easy repairIndexing code12
Recent patents
- Engine crankshaft assemblies with gear interfaces29 Sep 2026US 12,747,751 B2GM Global Technology Operations LLC
- Gear15 Sep 2026US 12,736,121 B2Sew-Eurodrive GmbH & Co. KG
- Electric power steering system with a ball-screw assembly8 Sep 2026US 12,728,910 B2ZF Friedrichshafen AG
- Spline toothing between ring gear and housing part25 Aug 2026US 12,716,479 B2ZF Friedrichshafen AG
- Lightweight and low noise gear assembly11 Aug 2026US 12,704,172 B2Eaton Intelligent Power Limited
- Gear mechanism8 Oct 2026US 2026/0309218 A1Techno Dynamics Inc.
- Composite structure rotating body and resin molded body1 Oct 2026US 2026/0298326 A1Resonac Corporation
- Lightweight gear24 Sep 2026US 2026/0287048 A1Lockheed Martin Corporation
- Torsionally compliant gear24 Sep 2026US 2026/0287050 A1Lockheed Martin Corporation
- Method for manufacturing strain wave gear10 Sep 2026US 2026/0264145 A1Iljin Global Holdings Co., Ltd.
Most cited
By later US patents
- Gear stage assembly with preload torque108US 6,789,442 B2Heidelberger Druckmaschinen AG · 2004
- Toothed-belt, V-belt, and pulley assembly, for treadmills85US 5,470,293 AWoodway AG · 1995
- Mold type plastic gear75US 6,070,484 AEnplas Corporation · 2000
- Self-cleaning sprocket61US 4,072,062 AInternational Harvester Company · 1978
- Gear made of resin, and mold structure54US 6,883,397 B2Enplas Corporation · 2005