F16F 1/32
Belleville-type springs
Official title: Belleville-type springs (friction-clutch diaphragm springs F16D13/583)
F16F1/32 (Belleville-type springs) appears on 285 US grants and 242 published applications in this corpus.
Search patents in F16F- Granted patents
- 285
- Published applications
- 242
- Assignees
- 210
- Inventors
- 625
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 7 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 0 |
| 2002 | 3 | 4 |
| 2003 | 4 | 4 |
| 2004 | 3 | 8 |
| 2005 | 2 | 11 |
| 2006 | 4 | 6 |
| 2007 | 6 | 8 |
| 2008 | 7 | 3 |
| 2009 | 4 | 12 |
| 2010 | 3 | 11 |
| 2011 | 2 | 12 |
| 2012 | 9 | 10 |
| 2013 | 12 | 5 |
| 2014 | 10 | 13 |
| 2015 | 10 | 13 |
| 2016 | 13 | 7 |
| 2017 | 8 | 5 |
| 2018 | 3 | 5 |
| 2019 | 9 | 17 |
| 2020 | 6 | 15 |
| 2021 | 12 | 23 |
| 2022 | 17 | 17 |
| 2023 | 19 | 6 |
| 2024 | 14 | 6 |
| 2025 | 5 | 14 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Damper rod mount22 Sep 2026US 12,741,497 B2Prospira Corporation
- Apparatus and method for encapsulating a disc spring assembly in an insulated package23 Jun 2026US 12,663,051 B1Envision Energy USA Ltd.
- Hair removal device19 May 2026US 12,629,854 B2The Gillette Company
- Bicycle seat with vibration isolation3 Mar 2026US 12,565,274 B2Toyota Jidosha Kabushiki Kaisha
- Vibration isolator pre-load mechanism13 Jan 2026US 12,523,271 B2Toyota Motor Engineering & Manufacturing North America, Inc.
- Hair removal device3 Sep 2026US 2026/0257388 A1The Gillette Company
- Linear damper and steering device27 Aug 2026US 2026/0249907 A1Somic Management Holdings Inc.
- A disc for use in a disc spring, and a disc spring assembly comprising the disc6 Aug 2026US 2026/0226954 A1Tomax AS
- Measuring head, and rocking fulcrum member used therein25 Jun 2026US 2026/0177126 A1Tokyo Seimitsu Co., Ltd.
- Damper rod mount30 Apr 2026US 2026/0116135 A1Prospira Corporation
Most cited
By later US patents
- Torque transmitting apparatus181US 5,622,245 ALuk Lamellen und Kupplungsbau GmbH · 1997
- Active suspension systems and components using piezoelectric sensing and actuation devices171US 5,390,949 AThe University of Toledo · 1995
- Apparatus for retaining a coupling ring in non-self locking electrical connectors150US 5,141,448 AMatrix Science Corporation · 1992
- Tangential linear flexure bearing92US 5,492,313 AThe Aerospace Corporation · 1996
- Slotted disc and elastomeric matrix damper assembly87US 4,968,010 A1990