B02C 23/04
Safety devices
Official title: Safety devices (in general F16P {; for rotary mills B02C13/31})
B02C23/04 (Safety devices) appears on 210 US grants and 209 published applications in this corpus.
Search patents in B02C- Granted patents
- 210
- Published applications
- 209
- Assignees
- 117
- Inventors
- 370
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 7 |
| 2003 | 5 | 6 |
| 2004 | 3 | 4 |
| 2005 | 3 | 7 |
| 2006 | 11 | 11 |
| 2007 | 7 | 11 |
| 2008 | 5 | 12 |
| 2009 | 12 | 9 |
| 2010 | 8 | 16 |
| 2011 | 13 | 13 |
| 2012 | 7 | 7 |
| 2013 | 11 | 9 |
| 2014 | 8 | 7 |
| 2015 | 7 | 8 |
| 2016 | 6 | 11 |
| 2017 | 8 | 6 |
| 2018 | 3 | 12 |
| 2019 | 14 | 11 |
| 2020 | 10 | 6 |
| 2021 | 6 | 7 |
| 2022 | 4 | 5 |
| 2023 | 4 | 5 |
| 2024 | 2 | 11 |
| 2025 | 4 | 4 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Crusher for mineral materials or recycled materials6 Oct 2026US 12,752,279 B2Kleemann GmbH
- Powder grinder25 Aug 2026US 12,714,998 B2Frewitt Fabrique De Machines SA
- Container grinding system containing or having contained a plant protection product3 Mar 2026US 12,564,844 B2Exel Industries
- Overload protection device for the hydraulic system of a mineral material machining plant23 Sep 2025US 12,420,286 B2Kleemann GmbH
- System and method for performance and health monitoring to optimize operation of a pulverizer mill2 Sep 2025US 12,405,606 B2Tata Consultancy Services Limited
- Safety interlock system for industrial machinery24 Sep 2026US 2026/0284673 A1Provisur Technologies, Inc.
- Battery deconstruction apparatus and methods9 Jul 2026US 2026/0192307 A1Franklin Miller, Inc.
- Disposal tool5 Feb 2026US 2026/0034548 A1
- Safety device for a breaker hammer8 Jan 2026US 2026/0008063 A1
- Laboratory mill11 Dec 2025US 2025/0377268 A1Fritsch GmbH
Most cited
By later US patents
- Safety system for a wood chipper140US 5,667,152 A1997
- Shredder with lock for on/off switch82US 7,040,559 B2Fellowes, Inc. · 2006
- Paper shredder with lower cabinet and upper hood60US 5,429,313 A1995
- Brush chipper and brake assembly usable therewith45US 3,989,198 AAsplundh Tree Expert Co. · 1976
- Shredder with thickness detector45US 7,635,102 B2Fellowes, Inc. · 2009