F16B 31/028
With a load-indicating washer or washer assembly
Official title: {with a load-indicating washer or washer assembly}
F16B31/028 (With a load-indicating washer or washer assembly) appears on 207 US grants and 187 published applications in this corpus.
Search patents in F16B- Granted patents
- 207
- Published applications
- 187
- Assignees
- 121
- Inventors
- 383
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 6 |
| 2004 | 1 | 5 |
| 2005 | 0 | 2 |
| 2006 | 7 | 5 |
| 2007 | 3 | 2 |
| 2008 | 3 | 7 |
| 2009 | 2 | 9 |
| 2010 | 2 | 4 |
| 2011 | 3 | 6 |
| 2012 | 5 | 4 |
| 2013 | 6 | 6 |
| 2014 | 3 | 7 |
| 2015 | 3 | 14 |
| 2016 | 7 | 10 |
| 2017 | 11 | 12 |
| 2018 | 12 | 13 |
| 2019 | 9 | 19 |
| 2020 | 12 | 5 |
| 2021 | 10 | 10 |
| 2022 | 7 | 13 |
| 2023 | 5 | 8 |
| 2024 | 9 | 9 |
| 2025 | 6 | 6 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Threaded fastener18 Aug 2026US 12,710,069 B2Goodrich Actuation Systems Limited
- Folding chair19 May 2026US 12,628,954 B2Dongguan Shichang Metals Factory Ltd.
- Screw release with force release component14 Oct 2025US 12,442,400 B2Lenovo (Singapore) Pte. Ltd.
- Tension indicator for a rock bolt12 Aug 2025US 12,385,396 B2Sandvik Mining and Construction Australia Pty Ltd
- Monitoring system for critical electrical distribution systems12 Aug 2025US 12,385,963 B2Schneider Electric USA, Inc.
- Washer for measuring force and distributing force when connecting a connection means to a part to be connected1 Oct 2026US 2026/0298743 A1Altosens GmbH
- Bolting system with loosening detection function5 Mar 2026US 2026/0063163 A1HWASUNG FASTENERS Co., Ltd.
- Folding chair22 Jan 2026US 2026/0020675 A1Dongguan Shichang Metals Factory Ltd.
- A composite washer for force indication and lossing prevetion15 Jan 2026US 2026/0016040 A1Worxsafe AB
- Systems, devices, and methods for enhancing distribution of fastener force for connection of flanged pipes4 Dec 2025US 2025/0369542 A1Marathon Petroleum Company LP
Most cited
By later US patents
- Fastener and grommet assembly providing axial play85US 5,094,579 A1992
- Load indicating washer81US 3,948,141 A1976
- Load washer68US 5,222,399 AFel-Pro Incorporated · 1993
- Graduated-load spring washer system for screws and threaded fasteners66US 4,958,970 AThe United States of America as represented by the Secretary of the Navy · 1990
- Device for indicating the proper installation of fittings63US 5,280,967 A1994