B02C 23/24
Passing gas through crushing or disintegrating zone
Official title: Passing gas through crushing or disintegrating zone ({B02C15/001}, B02C23/38, B02C23/40 take precedence)
B02C23/24 (Passing gas through crushing or disintegrating zone) appears on 344 US grants and 284 published applications in this corpus.
Search patents in B02C- Granted patents
- 344
- Published applications
- 284
- Assignees
- 235
- Inventors
- 755
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 13 | 0 |
| 1988 | 10 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 7 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 12 | 0 |
| 1998 | 8 | 0 |
| 1999 | 10 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 1 |
| 2002 | 6 | 5 |
| 2003 | 6 | 3 |
| 2004 | 5 | 4 |
| 2005 | 2 | 8 |
| 2006 | 0 | 1 |
| 2007 | 9 | 4 |
| 2008 | 0 | 2 |
| 2009 | 2 | 4 |
| 2010 | 5 | 15 |
| 2011 | 5 | 7 |
| 2012 | 7 | 11 |
| 2013 | 8 | 13 |
| 2014 | 9 | 17 |
| 2015 | 13 | 16 |
| 2016 | 7 | 14 |
| 2017 | 5 | 21 |
| 2018 | 7 | 17 |
| 2019 | 9 | 16 |
| 2020 | 20 | 20 |
| 2021 | 14 | 20 |
| 2022 | 16 | 15 |
| 2023 | 18 | 23 |
| 2024 | 14 | 12 |
| 2025 | 13 | 12 |
| 2026 | 8 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B02C 23/32With return of oversize material to crushing or disintegrating zone93
- B02C 23/30The applied gas acting to effect material separation87
- B02C 23/26Characterised by point of gas entry or exit or by gas flow44
- B02C 23/34Gas being recirculated to crushing or disintegrating zone26
- B02C 23/28Gas moving means being integral with, or attached to, crushing or disintegrating24
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Most cited
By later US patents
- Method and apparatus for the dry grinding of solids43US 5,695,130 A1997
- Medical waste disposal system40US 5,054,696 AMedical Safetec, Inc. · 1991
- Apparatus for comminuting waste materials38US 4,687,144 AIrwin Research and Development, Inc. · 1987
- Sifter for sifting granular material and grinding system with insertion of such a sifter37US 5,392,998 AKloeckner-Humboldt-Deutz AG · 1995
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