F16B 39/00
Locking of screws, bolts or nuts
Official title: Locking of screws, bolts or nuts ({F16B35/005 takes precedence}; locking of bottle closures B65D; locking of rail-fastening bolts for permanent ways E01B9/12; locking of fastening means for railway fishplates E01B11/38; locking devices for valves or cocks F16K)
F16B39/00 (Locking of screws, bolts or nuts) appears on 2,593 US grants and 2,391 published applications in this corpus.
Search patents in F16B- Granted patents
- 2,593
- Published applications
- 2,391
- Assignees
- 1,362
- Inventors
- 4,497
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 31 | 0 |
| 1978 | 29 | 0 |
| 1979 | 18 | 0 |
| 1980 | 24 | 0 |
| 1981 | 45 | 0 |
| 1982 | 26 | 0 |
| 1983 | 17 | 0 |
| 1984 | 22 | 0 |
| 1985 | 25 | 0 |
| 1986 | 20 | 0 |
| 1987 | 42 | 0 |
| 1988 | 44 | 0 |
| 1989 | 44 | 0 |
| 1990 | 53 | 0 |
| 1991 | 49 | 0 |
| 1992 | 54 | 0 |
| 1993 | 37 | 0 |
| 1994 | 32 | 0 |
| 1995 | 32 | 0 |
| 1996 | 36 | 0 |
| 1997 | 40 | 0 |
| 1998 | 36 | 0 |
| 1999 | 35 | 0 |
| 2000 | 33 | 0 |
| 2001 | 32 | 6 |
| 2002 | 30 | 42 |
| 2003 | 22 | 53 |
| 2004 | 34 | 45 |
| 2005 | 35 | 61 |
| 2006 | 19 | 39 |
| 2007 | 30 | 59 |
| 2008 | 22 | 50 |
| 2009 | 13 | 74 |
| 2010 | 41 | 66 |
| 2011 | 40 | 50 |
| 2012 | 35 | 66 |
| 2013 | 55 | 102 |
| 2014 | 88 | 135 |
| 2015 | 106 | 156 |
| 2016 | 118 | 130 |
| 2017 | 107 | 137 |
| 2018 | 105 | 156 |
| 2019 | 122 | 165 |
| 2020 | 119 | 149 |
| 2021 | 120 | 182 |
| 2022 | 120 | 110 |
| 2023 | 86 | 115 |
| 2024 | 115 | 102 |
| 2025 | 83 | 77 |
| 2026 | 42 | 64 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Locknut having axially extended spring member6 Oct 2026US 12,753,790 B2
- Locknut29 Sep 2026US 12,747,750 B2
- Zipnut systems22 Sep 2026US 12,742,470 B2
- Fastener restraint assembly to prevent rotational loosening of mechanical fasteners, fastener and method8 Sep 2026US 12,729,710 B2
- Locking structure and buckling washer8 Sep 2026US 12,729,711 B2Pegatron Corporation
- Washer, nut, and fastening structure8 Oct 2026US 2026/0309182 A1Nippon Plarad Co.
- Components, assemblies, systems, and methods providing enhanced reliability of connections between components of high-power pumps1 Oct 2026US 2026/0298279 A1Vulcan Industrial Holdings, LLC
- High strength thread locking system1 Oct 2026US 2026/0298281 A1
- Systems and methods for preloading a bearing and aligning a lock nut24 Sep 2026US 2026/0285085 A1Temper Axle Products Corporation
- Hand Screw Locking Mechanism24 Sep 2026US 2026/0287005 A1OnLogic, Inc.
Most cited
By later US patents
- Self-locking resorbable screws and plates for internal fixation of bone fractures and tendon-to-bone attachment542US 5,275,601 ASynthes USA, LLC · 1994
- Device for osteosynthesis of fractures of the extremities of the femur389US 4,488,543 ATornier S.A. France · 1984
- Apparatus and polymeric endoluminal sealing273US 5,947,977 AEndoluminal Therapeutics, Inc. · 1999
- Holding screw244US 4,636,121 A1987
- Head bolt and driver therefore243US 5,249,899 A1993