F16F 1/328
With undulations
Official title: {with undulations, e.g. wavy springs}
F16F1/328 (With undulations) appears on 55 US grants and 64 published applications in this corpus.
Search patents in F16F- Granted patents
- 55
- Published applications
- 64
- Assignees
- 56
- Inventors
- 162
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 4 |
| 2006 | 2 | 1 |
| 2007 | 1 | 2 |
| 2008 | 3 | 0 |
| 2009 | 1 | 4 |
| 2010 | 1 | 3 |
| 2011 | 0 | 2 |
| 2012 | 3 | 3 |
| 2013 | 1 | 1 |
| 2014 | 2 | 2 |
| 2015 | 3 | 4 |
| 2016 | 4 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 5 |
| 2020 | 0 | 4 |
| 2021 | 3 | 6 |
| 2022 | 5 | 7 |
| 2023 | 6 | 2 |
| 2024 | 4 | 1 |
| 2025 | 2 | 4 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Damper rod mount22 Sep 2026US 12,741,497 B2Prospira Corporation
- Hair removal device19 May 2026US 12,629,854 B2The Gillette Company
- Self-controllable load spring washer15 Apr 2025US 12,274,862 B2Becton, Dickinson and Company
- Flat form spring, in particular disc or wave spring4 Feb 2025US 12,215,751 B2Christian Bauer GmbH + Co.
- Flexible member24 Sep 2024US 12,098,755 B2NHK Spring Co., Ltd.
- Hair removal device3 Sep 2026US 2026/0257388 A1The Gillette Company
- Linear damper and steering device27 Aug 2026US 2026/0249907 A1Somic Management Holdings Inc.
- Damper rod mount30 Apr 2026US 2026/0116135 A1Prospira Corporation
- Vibration isolation system for chromatography separation instrument17 Jul 2025US 2025/0231154 A1Wyatt Technology Corporation
- Self-Controllable Load Spring Washer26 Jun 2025US 2025/0205428 A1Becton, Dickinson and Company
Most cited
By later US patents
- Interlaced wave spring83US 5,639,074 ASmalley Steel Ring Company · 1997
- Composite multi-wave compression spring70US 6,068,250 AProteus Engineering, Inc. · 2000
- Wave spring42US 5,622,358 ASuncall Corporation · 1997
- Composite wave ring spring42US 6,669,184 B2Visteon Global Technologies, Inc. · 2003
- Composite multi-wave compression spring41US 5,558,393 AProteus Engineering, Inc. · 1996