F16F 1/021
Characterised by their composition
Official title: {characterised by their composition, e.g. comprising materials providing for particular spring properties (composition and manufacture of clock or watch springs G04B1/145)}
F16F1/021 (Characterised by their composition) appears on 147 US grants and 179 published applications in this corpus.
Search patents in F16F- Granted patents
- 147
- Published applications
- 179
- Assignees
- 134
- Inventors
- 456
- Latest grant
- 5 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 3 |
| 2006 | 3 | 3 |
| 2007 | 2 | 5 |
| 2008 | 0 | 3 |
| 2009 | 3 | 5 |
| 2010 | 3 | 2 |
| 2011 | 1 | 6 |
| 2012 | 2 | 5 |
| 2013 | 7 | 13 |
| 2014 | 2 | 7 |
| 2015 | 9 | 22 |
| 2016 | 12 | 5 |
| 2017 | 6 | 11 |
| 2018 | 8 | 15 |
| 2019 | 4 | 8 |
| 2020 | 10 | 11 |
| 2021 | 10 | 11 |
| 2022 | 6 | 14 |
| 2023 | 6 | 9 |
| 2024 | 16 | 8 |
| 2025 | 6 | 5 |
| 2026 | 0 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Wire rod and steel wire for spring, having enhanced toughness and corrosion fatigue properties, and respective manufacturing methods therefor5 Aug 2025US 12,378,628 B2Posco
- Damper spring24 Jun 2025US 12,338,516 B2Nippon Steel Corporation
- Electromagnetic actuator for a display with improved spring arrangement and output device with said actuator20 May 2025US 12,308,013 B2Sound Solutions International (Zhenjiang) Co., Ltd.
- Rubbery composition and method for producing the same25 Feb 2025US 12,234,352 B2Osaka Gas Chemicals Co., Ltd.
- Copper-coated steel wire, spring, stranded wire, insulated electric wire, and cable11 Feb 2025US 12,224,079 B2Sumitomo Electric Industries, Ltd.
- Anti-static spiral spring for valve24 Sep 2026US 2026/0287035 A1Bray International, Inc.
- Spring steel wire with improved permanent deformation resistance and manufacturing method therefor23 Jul 2026US 2026/0208246 A1Posco
- Horology component coloured by interference effect25 Jun 2026US 2026/0177125 A1Nivarox-FAR S. A.
- Method and apparatus for increasing spring rate of linear springs16 Apr 2026US 2026/0104079 A1Rtx Corporation
- Coil spring manufacturing method12 Feb 2026US 2026/0042138 A1NHK Spring Co., Ltd.
Most cited
By later US patents
- Holding device for medical instruments490US 9,429,204 B2KARL STORZ GmbH&Co.KG · 2016
- Suspension assembly131US 4,991,045 AHutchinson Technology Incorporated · 1991
- Active energy absorbing cellular metals and method of manufacturing and using the same77US 7,288,326 B2University of Virginia Patent Foundation · 2007
- Nitinol impact absorbers61US 6,530,564 B1Nitinol Technologies, Inc. · 2003
- Hysteretic damping apparati and methods54US 5,842,312 AE*Sorb Systems · 1998