B21K 1/463
With recessed heads
Official title: {with recessed heads}
B21K1/463 (With recessed heads) appears on 57 US grants and 58 published applications in this corpus.
Search patents in B21K- Granted patents
- 57
- Published applications
- 58
- Assignees
- 39
- Inventors
- 82
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 2 | 1 |
| 2005 | 1 | 4 |
| 2006 | 0 | 3 |
| 2007 | 1 | 3 |
| 2008 | 1 | 3 |
| 2009 | 0 | 2 |
| 2010 | 0 | 3 |
| 2011 | 3 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 3 |
| 2015 | 2 | 3 |
| 2016 | 2 | 2 |
| 2017 | 2 | 1 |
| 2018 | 1 | 7 |
| 2019 | 1 | 2 |
| 2020 | 4 | 4 |
| 2021 | 4 | 2 |
| 2022 | 1 | 3 |
| 2023 | 2 | 1 |
| 2024 | 0 | 2 |
| 2025 | 2 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Stick fit fastener recess system24 Feb 2026US 12,560,193 B2Phillips Screw Company
- Fastener system with stabilizer ribs and square drive17 Feb 2026US 12,551,992 B2Phillips Screw Company
- Fastener system with stabilizer ribs12 Aug 2025US 12,384,007 B2Phillips Screw Company
- Stick fit fastener recess system18 Feb 2025US 12,228,158 B2Phillips Screw Company
- Drive system with full surface drive contact10 Oct 2023US 11,781,598 B2Acument Intellectal Properties, LLC
- Tool and fastener with overhang structures to reduce stripping11 Apr 2024US 2024/0117834 A1Phillips Screw Company
- An improved screw and a method of manufacturing thereof4 Apr 2024US 2024/0109121 A1
- Stick fit fastener recess system5 Jan 2023US 2023/0003245 A1Phillips Screw Company
- Method for producing a screw element blank and a screw element, and screw element blank and screw element17 Nov 2022US 2022/0362834 A1Sf Handels- Und Besitzgesellschaft Mbh
- Fastener system with stabilizer ribs and square drive26 May 2022US 2022/0161398 A1Phillips Screw Company
Most cited
By later US patents
- Screw heads216US 4,084,478 APhillips Screw Company · 1978
- Spiral drive system for threaded fasteners50US 5,957,645 APhillips Screw Company · 1999
- Driver for threaded fasteners with spiral drive37US 6,367,358 B1Phillips Screw Company · 2002
- Combination of screw and screw driver bit and header punch for its manufacture24US 6,886,433 B22005
- Tools for punching fastener heads22US 4,151,621 APhillips Screw Company · 1979