B25B 13/485
For theft-proof screws, bolts or nuts
Official title: {for theft-proof screws, bolts or nuts}
B25B13/485 (For theft-proof screws, bolts or nuts) appears on 108 US grants and 67 published applications in this corpus.
Search patents in B25B- Granted patents
- 108
- Published applications
- 67
- Assignees
- 43
- Inventors
- 171
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 5 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 4 | 3 |
| 2004 | 2 | 10 |
| 2005 | 4 | 9 |
| 2006 | 7 | 8 |
| 2007 | 8 | 3 |
| 2008 | 2 | 3 |
| 2009 | 0 | 2 |
| 2010 | 0 | 2 |
| 2011 | 2 | 3 |
| 2012 | 3 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 3 |
| 2015 | 3 | 2 |
| 2016 | 2 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 3 |
| 2019 | 3 | 2 |
| 2020 | 2 | 3 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Connector and electronic device26 May 2026US 12,640,525 B2Huawei Digital Power Technologies Co., Ltd.
- Locking thread fasteners12 Sep 2023US 11,754,112 B2
- Safety screw assembly and operating key thereof6 Dec 2022US 11,518,006 B2
- Crimping devices including a pistol-grip air hammer and a crimp socket with a sloped key5 Jan 2021US 10,882,167 B2Toyota Motor Engineering & Manufacturing North America, Inc.
- Adjustable positioning device14 Jul 2020US 10,710,216 B2Shern Yeong Precise Optical Co., Ltd.
- Security fasteners22 May 2025US 2025/0163950 A1Ultra PCS Limited
- Locking nut key11 Jan 2024US 2024/0009817 A1Dynomec Ltd
- Locking Thread Fasteners22 Jun 2023US 2023/0193944 A1
- Connector and electronic device15 Jun 2023US 2023/0187884 A1Huawei Digital Power Technologies Co., Ltd.
- Unlocking tool for a bolt locking system20 Aug 2020US 2020/0262040 A1
Most cited
By later US patents
- Bone screw fixation assembly, bone screw therefor and method of fixation169US 4,963,144 A1990
- Torque-setting, tamper-resistant fastener and method and tool for use with same115US 7,066,062 B22006
- System for the removing of threaded fasteners80US 5,551,320 A1996
- Theft-prevention screw fastenings54US 4,027,572 A1977
- Tamper-proof drive system based upon multi-lobular configuration54US 5,378,101 ATextron Inc. · 1995