B23
Machine tools
Official title: Machine tools; metal-working not otherwise provided for
B23 (Machine tools) appears on 116,596 US grants and 99,795 published applications in this corpus.
Search patents in B23- Granted patents
- 116,596
- Published applications
- 99,795
- Assignees
- 27,597
- Inventors
- 172,868
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1423 | 0 |
| 1977 | 1395 | 0 |
| 1978 | 1358 | 0 |
| 1979 | 1005 | 0 |
| 1980 | 1281 | 0 |
| 1981 | 1327 | 0 |
| 1982 | 1200 | 0 |
| 1983 | 1175 | 0 |
| 1984 | 1481 | 0 |
| 1985 | 1715 | 0 |
| 1986 | 1816 | 0 |
| 1987 | 2014 | 0 |
| 1988 | 1720 | 0 |
| 1989 | 1984 | 0 |
| 1990 | 1779 | 0 |
| 1991 | 2045 | 0 |
| 1992 | 1951 | 0 |
| 1993 | 1885 | 0 |
| 1994 | 1798 | 0 |
| 1995 | 1597 | 0 |
| 1996 | 1542 | 0 |
| 1997 | 1580 | 0 |
| 1998 | 2053 | 0 |
| 1999 | 2222 | 0 |
| 2000 | 2276 | 0 |
| 2001 | 2446 | 839 |
| 2002 | 2249 | 2434 |
| 2003 | 2449 | 2653 |
| 2004 | 2244 | 3119 |
| 2005 | 1811 | 3205 |
| 2006 | 1996 | 3176 |
| 2007 | 1676 | 2981 |
| 2008 | 1518 | 3017 |
| 2009 | 1460 | 3170 |
| 2010 | 1977 | 3321 |
| 2011 | 1929 | 3313 |
| 2012 | 2213 | 3236 |
| 2013 | 2595 | 4394 |
| 2014 | 3062 | 4695 |
| 2015 | 3466 | 5387 |
| 2016 | 3630 | 5084 |
| 2017 | 4101 | 5047 |
| 2018 | 4019 | 5244 |
| 2019 | 4731 | 5422 |
| 2020 | 4568 | 5156 |
| 2021 | 3972 | 4891 |
| 2022 | 3842 | 4566 |
| 2023 | 3436 | 4454 |
| 2024 | 3651 | 4432 |
| 2025 | 3550 | 3784 |
| 2026 | 2383 | 2775 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subclasses
Granted patents
- B23KSoldering or unsoldering51,749
- B23QDetails, components, or accessories for machine tools21,100
- B23PMetal-working not otherwise provided for18,607
- B23BTurning16,363
- B23DPlaning11,236
- B23CMilling5,165
- B23HWorking of metal by the action of a high concentration of electric3,567
- B23FMaking gears or toothed racks1,369
All 9 subclassesShow fewer
Recent patents
- Coated cutting tool with an alternating layer composition6 Oct 2026US 12,752,344 B2Walter AG
- Power tool6 Oct 2026US 12,752,345 B2Robert Bosch GmbH
- Workpiece holding device6 Oct 2026US 12,752,346 B2Aktiebolaget Skf
- Mounting device, mounting method, and method for manufacturing product6 Oct 2026US 12,752,347 B2Sintokogio, Ltd.
- Tool driving device and method of producing machined product6 Oct 2026US 12,752,348 B2Subaru Corporation
- Steel pipe out-of-roundness prediction method, steel pipe out-of-roundness control method, steel pipe manufacturing method, steel pipe out-of-roundness prediction model generation method, and steel pipe out-of-roundness prediction device8 Oct 2026US 2026/0307127 A1Jfe Steel Corporation
- Seam position detection method, manufacturing method of welded steel pipe, quality control method of welded steel pipe, seam position detection apparatus, and manufacturing equipment of welded steel pipe8 Oct 2026US 2026/0307128 A1Jfe Steel Corporation
- Vibration-proof structure for rotating body8 Oct 2026US 2026/0307153 A1Big Daishowa Co., Ltd.
- Tool cutting edge adjusting head, method of operating same and correcting tool cutting edge wear8 Oct 2026US 2026/0307154 A1Blum-Novotest GmbH
- Bit holder8 Oct 2026US 2026/0307155 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Automated end effector component reloading system for use with a robotic system2,180US 8,844,789 B2Ethicon Endo-Surgery, Inc. · 2014
- Rotary drive shaft assemblies for surgical instruments with articulatable end effectors1,997US 8,747,238 B2Ethicon Endo-Surgery, Inc. · 2014
- Surgical system for powered instruments1,811US 4,705,038 ADyonics, Inc. · 1987
- Orthopedic drive assembly1,581US 4,728,876 AMinnesota Mining and Manufacturing Company · 1988
- Electric hand tool, in particular drill1,539US 5,533,581 ARobert Bosch GmbH · 1996