Y10T 74/19953
Worm and helical
Y10T74/19953 (Worm and helical) appears on 163 US grants and 73 published applications in this corpus.
Search patents in Y10T- Granted patents
- 163
- Published applications
- 73
- Assignees
- 113
- Inventors
- 277
- Latest grant
- 5 May 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 8 | 0 |
| 1987 | 14 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 5 | 1 |
| 2003 | 3 | 5 |
| 2004 | 4 | 6 |
| 2005 | 3 | 8 |
| 2006 | 4 | 0 |
| 2007 | 2 | 6 |
| 2008 | 1 | 9 |
| 2009 | 3 | 4 |
| 2010 | 9 | 6 |
| 2011 | 5 | 6 |
| 2012 | 4 | 8 |
| 2013 | 6 | 5 |
| 2014 | 7 | 1 |
| 2015 | 5 | 4 |
| 2016 | 3 | 1 |
| 2017 | 4 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Connection system for connecting a component such as a shaft, hub, bushing or the like to a gear wheel, the gear wheel comprising helical gearing5 May 2020US 10,641,341 B2IMS Gear SE & Co. KGaA
- Spindle for a drug delivery device31 Jul 2018US 10,034,982 B2Sanofi-Aventis Deutschland GmbH
- Worm wheel and electric power steering apparatus30 May 2017US 9,663,138 B2Nsk Ltd.
- Method of producing injection-molding die for worm wheel, and method of producing worm wheel9 May 2017US 9,643,269 B2Enplas Corporation
- Worm wheel and electric power steering apparatus11 Apr 2017US 9,616,917 B2Nsk Ltd.
- Connection System for Connecting a Component such as a Shaft, Hub, Bushing or the Like to a Gear Wheel, the Gear Wheel Comprising Helical Gearing1 Feb 2018US 2018/0031044 A1IMS Gear SE & Co. KGaA
- Hydraulic device16 Jun 2016US 2016/0169225 A1Sumitomo Precision Products Co., Ltd.
- Worm wheel and electric power steering apparatus10 Dec 2015US 2015/0354687 A1Nsk Ltd.
- Worm wheel and electric power steering apparatus10 Dec 2015US 2015/0354688 A1Nsk Ltd.
- Worm wheel and electric power steering apparatus3 Dec 2015US 2015/0345609 A1Nsk Ltd.
Most cited
By later US patents
- Ball-worm transmission77US 7,051,610 B22006
- Gears and gear assemblies65US 5,288,556 A1994
- Enveloped worm gear clutch wedgelock responsive to reaction force51US 5,605,071 AITT Automotive Electrical Systems, Inc. · 1997
- Variable ratio power transmission means39US 4,630,495 AFairey Hydraulics Limited · 1986
- Parabolically helical spline shaft coupling32US 5,533,825 AGeneral Electric Company · 1996