F16B 23/00
Devices for fastening or securing constructional elements or machine parts together: specially
Official title: Specially shaped {nuts or} heads of bolts or screws for rotations by a tool {(detachable ornamental heads for screws A47G3/00; screwdrivers, wrenches B25B)}
F16B23/00 (Devices for fastening or securing constructional elements or machine parts together: specially) appears on 826 US grants and 790 published applications in this corpus.
Search patents in F16B- Granted patents
- 826
- Published applications
- 790
- Assignees
- 473
- Inventors
- 1,424
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 11 | 0 |
| 1978 | 13 | 0 |
| 1979 | 7 | 0 |
| 1980 | 10 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 1 | 0 |
| 1984 | 13 | 0 |
| 1985 | 5 | 0 |
| 1986 | 12 | 0 |
| 1987 | 12 | 0 |
| 1988 | 7 | 0 |
| 1989 | 12 | 0 |
| 1990 | 14 | 0 |
| 1991 | 16 | 0 |
| 1992 | 13 | 0 |
| 1993 | 17 | 0 |
| 1994 | 15 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 16 | 0 |
| 1998 | 12 | 0 |
| 1999 | 11 | 0 |
| 2000 | 20 | 0 |
| 2001 | 17 | 5 |
| 2002 | 24 | 14 |
| 2003 | 12 | 30 |
| 2004 | 20 | 30 |
| 2005 | 18 | 37 |
| 2006 | 16 | 23 |
| 2007 | 16 | 32 |
| 2008 | 14 | 24 |
| 2009 | 7 | 30 |
| 2010 | 9 | 23 |
| 2011 | 10 | 18 |
| 2012 | 15 | 24 |
| 2013 | 14 | 27 |
| 2014 | 24 | 24 |
| 2015 | 21 | 28 |
| 2016 | 15 | 31 |
| 2017 | 25 | 32 |
| 2018 | 25 | 48 |
| 2019 | 35 | 55 |
| 2020 | 29 | 47 |
| 2021 | 35 | 44 |
| 2022 | 39 | 47 |
| 2023 | 33 | 45 |
| 2024 | 33 | 32 |
| 2025 | 25 | 29 |
| 2026 | 20 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16B 23/0007Devices for fastening or securing constructional elements or machine parts together: specially496
- F16B 23/0061Devices for fastening or securing constructional elements or machine parts together: specially170
- F16B 23/0092Devices for fastening or securing constructional elements or machine parts together: specially81
- F16B 23/0069Devices for fastening or securing constructional elements or machine parts together: specially80
- F16B 23/0053Devices for fastening or securing constructional elements or machine parts together: specially35
- F16B 23/0084Devices for fastening or securing constructional elements or machine parts together: specially35
- F16B 23/0076Causing slipping of the tool in loosening rotation, i.e. disabling unscrewing unless32
Recent patents
- Low-profile fasteners with springs for heat transfer device loading6 Oct 2026US 12,757,316 B2Intel Corporation
- Self-feed bit system29 Sep 2026US 12,747,749 B2Black & Decker Inc.
- Screw and a method of manufacturing thereof15 Sep 2026US 12,734,576 B2
- Titanium diboride coated refractory metal component15 Sep 2026US 12,735,786 B2Plansee SE
- Fastener system with enhanced wear resistance features for abrasive environments1 Sep 2026US 12,723,614 B1Kooima Ag, Inc.
- Hidden recess furniture screw and driver system10 Sep 2026US 2026/0266325 A1
- Screw element, operating tool, use and forming tool25 Jun 2026US 2026/0177096 A1Spax International GmbH & Co. KG
- Fixture28 May 2026US 2026/0146633 A1
- Lug nut utilizing open-frame designs28 May 2026US 2026/0146641 A1Ford Global Technologies, LLC
- Tile tool nut16 Apr 2026US 2026/0102873 A1Crowne Tools LLC
Most cited
By later US patents
- Cannulated self-tapping bone screw653US 4,950,270 ABoehringer Mannheim GmbH · 1990
- Fastener, particularly suited for orthopedic use479US 4,653,486 A1987
- Bone screw459US 5,169,400 AAesculap AG · 1992
- Interference fixation screw with integral instrumentation359US 5,062,843 A1991
- Recess drive bone screw and cooperable driving tool298US 6,016,727 ASofamor Danek Properties, Inc. · 2000