B23B 2228/24
Hard, i.e. after being hardened
B23B2228/24 (Hard, i.e. after being hardened) appears on 30 US grants and 35 published applications in this corpus.
Search patents in B23B- Granted patents
- 30
- Published applications
- 35
- Assignees
- 29
- Inventors
- 78
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 5 |
| 2016 | 3 | 4 |
| 2017 | 2 | 6 |
| 2018 | 4 | 2 |
| 2019 | 4 | 5 |
| 2020 | 3 | 2 |
| 2021 | 5 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 3 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Constant rake fluted drill bit and method of manufacture21 Apr 2026US 12,605,795 B1
- Tool with wear detection2 Dec 2025US 12,485,491 B2Guehring KG
- Constant rake fluted drill bit and method of manufacture18 Feb 2025US 12,226,861 B1
- Cutting tool7 Jan 2025US 12,186,812 B2Sumitomo Electric Industries, Ltd.
- Method for surface treatment, roller bearing component and device8 Aug 2023US 11,717,922 B2Schaeffler Technologies AG & Co. KG
- Surface coated cutting tools23 Apr 2026US 2026/0108952 A1
- Cutting tool21 Nov 2024US 2024/0383042 A1Sumitomo Electric Industries, Ltd.
- Cutting insert for recess machining, cutting insert kit having two such cutting inserts, cutting insert holder for such cutting inserts, and method for producing a recess18 Jan 2024US 2024/0017329 A1Mapal Fabrik fur Prazisionswerkzeuge Dr. Kress KG
- Tool With Wear Detection15 Jun 2023US 2023/0182211 A1Guehring KG
- Method for surface treatment, roller bearing component and device3 Mar 2022US 2022/0063027 A1Schaeffler Technologies AG & Co. KG
Most cited
By later US patents