F16B 39/28
By special members on, or shape of, the nut or bolt
Official title: by special members on, or shape of, the nut or bolt (F16B39/26 takes precedence; locknuts F16B39/12)
F16B39/28 (By special members on, or shape of, the nut or bolt) appears on 1,184 US grants and 1,077 published applications in this corpus.
Search patents in F16B- Granted patents
- 1,184
- Published applications
- 1,077
- Assignees
- 675
- Inventors
- 1,980
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 15 | 0 |
| 1978 | 12 | 0 |
| 1979 | 10 | 0 |
| 1980 | 13 | 0 |
| 1981 | 24 | 0 |
| 1982 | 20 | 0 |
| 1983 | 8 | 0 |
| 1984 | 10 | 0 |
| 1985 | 10 | 0 |
| 1986 | 11 | 0 |
| 1987 | 18 | 0 |
| 1988 | 24 | 0 |
| 1989 | 23 | 0 |
| 1990 | 28 | 0 |
| 1991 | 28 | 0 |
| 1992 | 27 | 0 |
| 1993 | 22 | 0 |
| 1994 | 12 | 0 |
| 1995 | 15 | 0 |
| 1996 | 18 | 0 |
| 1997 | 18 | 0 |
| 1998 | 16 | 0 |
| 1999 | 22 | 0 |
| 2000 | 17 | 0 |
| 2001 | 20 | 3 |
| 2002 | 16 | 20 |
| 2003 | 12 | 28 |
| 2004 | 18 | 23 |
| 2005 | 20 | 35 |
| 2006 | 9 | 19 |
| 2007 | 13 | 28 |
| 2008 | 9 | 26 |
| 2009 | 4 | 33 |
| 2010 | 18 | 27 |
| 2011 | 15 | 20 |
| 2012 | 11 | 31 |
| 2013 | 22 | 40 |
| 2014 | 41 | 62 |
| 2015 | 48 | 63 |
| 2016 | 46 | 60 |
| 2017 | 47 | 55 |
| 2018 | 47 | 64 |
| 2019 | 43 | 71 |
| 2020 | 57 | 59 |
| 2021 | 41 | 102 |
| 2022 | 50 | 49 |
| 2023 | 37 | 45 |
| 2024 | 51 | 48 |
| 2025 | 37 | 34 |
| 2026 | 17 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16B 39/282Locking by means of special shape of work-engaging surfaces329
- F16B 39/30Locking exclusively by special shape of the screw-thread228
- F16B 39/284Locking by means of elastic deformation180
- F16B 39/32Locking by means of a pawl or pawl-like tongue169
- F16B 39/34Locking by deformable inserts or like parts156
- F16B 39/36With conical locking parts, which may be split, including use of separate68
- F16B 39/38With a second part of the screw-thread which may be resiliently mounted33
Recent patents
- Locknut having axially extended spring member6 Oct 2026US 12,753,790 B2
- Locknut29 Sep 2026US 12,747,750 B2
- Fastening system with sealing arrangement11 Aug 2026US 12,704,145 B2Acument Intellectual Properties, LLC
- Stud bolt11 Aug 2026US 12,704,147 B2Nittoseiko Co., Ltd.
- Fastening device14 Jul 2026US 12,680,569 B2
- 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
- Systems and methods for preloading a bearing and aligning a lock nut24 Sep 2026US 2026/0285085 A1Temper Axle Products Corporation
- Lock nut24 Sep 2026US 2026/0287006 A1
- Structural Fastener17 Sep 2026US 2026/0276023 A1Mag Daddy, LLC
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 straightening, securing, compressing and elongating the spinal column243US 5,261,913 AJbs S.A. · 1993
- Low tolerance threaded fastener148US 5,944,465 A1999
- Segmental rib carriage instrumentation and associated methods143US 5,632,744 A1997
- Roof anchor and stress plate assembly140US 4,892,429 A1990