F16B 41/005
Measures against unauthorised operation of bolts, nuts or pins
Official title: {Measures against unauthorised operation of bolts, nuts or pins (F16B23/0007, F16B23/0061, F16B23/0069, F16B23/0076 and F16B31/02 take precedence; locks, keys E05B; for valves, taps or cocks F16K35/00; for pipe-joints with swivel-nuts F16L19/005)}
F16B41/005 (Measures against unauthorised operation of bolts, nuts or pins) appears on 479 US grants and 319 published applications in this corpus.
Search patents in F16B- Granted patents
- 479
- Published applications
- 319
- Assignees
- 249
- Inventors
- 757
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 8 | 0 |
| 1981 | 12 | 0 |
| 1982 | 7 | 0 |
| 1983 | 9 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 13 | 0 |
| 1987 | 14 | 0 |
| 1988 | 19 | 0 |
| 1989 | 23 | 0 |
| 1990 | 10 | 0 |
| 1991 | 16 | 0 |
| 1992 | 10 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 1 |
| 2002 | 2 | 4 |
| 2003 | 9 | 14 |
| 2004 | 7 | 15 |
| 2005 | 10 | 13 |
| 2006 | 8 | 11 |
| 2007 | 10 | 12 |
| 2008 | 8 | 9 |
| 2009 | 4 | 10 |
| 2010 | 2 | 8 |
| 2011 | 7 | 9 |
| 2012 | 8 | 11 |
| 2013 | 8 | 12 |
| 2014 | 6 | 17 |
| 2015 | 13 | 15 |
| 2016 | 17 | 17 |
| 2017 | 17 | 17 |
| 2018 | 14 | 13 |
| 2019 | 13 | 24 |
| 2020 | 10 | 12 |
| 2021 | 14 | 21 |
| 2022 | 12 | 11 |
| 2023 | 12 | 13 |
| 2024 | 21 | 12 |
| 2025 | 8 | 11 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Kitchen appliance11 Aug 2026US 12,702,249 B2De' Longhi Braun Household GmbH
- Anti-theft locking bolt assembly28 Jul 2026US 12,692,897 B2Rimgard Sweden AB
- Universal fastening lock24 Mar 2026US 12,584,512 B2Rimgard Sweden AB
- Sealed fastener cap and related method of manufacture10 Feb 2026US 12,546,359 B2National Nail Corp.
- Anti-theft nut9 Dec 2025US 12,492,723 B2Guangzhou Issyzone Technology Co., Limited
- Anti-Tamper Securing Mechanism and Operation Method thereof23 Jul 2026US 2026/0214816 A1Nanning FuLian FuGui Precision Industrial Co., Ltd.
- Corner casting pin lock with a detachable locking member9 Jul 2026US 2026/0194043 A1BNSF Logistics, LLC
- Insert9 Jul 2026US 2026/0194102 A1Japan Life Co., Ltd.
- Lug nut utilizing open-frame designs28 May 2026US 2026/0146641 A1Ford Global Technologies, LLC
- Plugs, Wood-Concrete Composite Element and Process26 Mar 2026US 2026/0085717 A1Adolf Wirth GmbH & Co. KG
Most cited
By later US patents
- Tamper-evident bolt125US 5,449,260 A1995
- Torque-setting, tamper-resistant fastener and method and tool for use with same115US 7,066,062 B22006
- Mechanical roof fastener113US 4,744,187 AThe Firestone Tire & Rubber Company · 1988
- Wellhead security apparatus78US 4,405,161 A1983
- Intravenous pole clamp75US 4,844,397 AC. R. Bard, Inc. · 1989