B02C 7/12
Shape or construction of discs
B02C7/12 (Shape or construction of discs) appears on 258 US grants and 194 published applications in this corpus.
Search patents in B02C- Granted patents
- 258
- Published applications
- 194
- Assignees
- 102
- Inventors
- 348
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 12 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 0 |
| 2002 | 5 | 6 |
| 2003 | 4 | 7 |
| 2004 | 2 | 7 |
| 2005 | 6 | 4 |
| 2006 | 3 | 12 |
| 2007 | 6 | 8 |
| 2008 | 11 | 7 |
| 2009 | 3 | 8 |
| 2010 | 6 | 6 |
| 2011 | 7 | 2 |
| 2012 | 7 | 5 |
| 2013 | 2 | 6 |
| 2014 | 3 | 15 |
| 2015 | 9 | 6 |
| 2016 | 4 | 6 |
| 2017 | 6 | 17 |
| 2018 | 7 | 9 |
| 2019 | 13 | 7 |
| 2020 | 6 | 9 |
| 2021 | 8 | 12 |
| 2022 | 6 | 11 |
| 2023 | 13 | 7 |
| 2024 | 8 | 9 |
| 2025 | 6 | 7 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Grinding appliance16 Jun 2026US 12,653,344 B2A.D.M.T Trading Ltd
- Deflaking element for pulper10 Mar 2026US 12,571,161 B2Kadant Black Clawson LLC
- Apparatuses and methods for producing nanoparticles from material in working liquid25 Nov 2025US 12,479,026 B2
- Refiner11 Nov 2025US 12,467,201 B2Aikawa Iron Works Co., Ltd.
- Refiner filling piece having variably coated bars28 Oct 2025US 12,454,793 B2Aikawa Fiber Technologies Oy
- Method, system and program for producing a refiner segment out of a worn refiner segment, and a rebuilt refiner segment20 Aug 2026US 2026/0241456 A1Valmet Corporation
- Systems and methods for dry embryo explant purification27 Nov 2025US 2025/0360511 A1
- System and method for extracting noxious chemicals from naturally-occurring raw materials and creating useful products20 Nov 2025US 2025/0352924 A1Plant Synergies, LLC
- Grinding apparatus for rechargeable battery materials21 Aug 2025US 2025/0262624 A1Samsung SDI.Co., Ltd.
- Mill26 Jun 2025US 2025/0205712 A1Mirka Ltd
Most cited
By later US patents
- High flow, low intensity plate for disc refiner73US 5,425,508 ABeloit Technologies, Inc. · 1995
- Materials size reduction systems and process73US 6,045,070 A2000
- Spiral groove pattern refiner plates56US 4,023,737 AWestvaco Corporation · 1977
- Refiner plate with variable pitch51US 5,893,525 ADurametal Corporation · 1999
- Refining element49US 5,695,136 ASunds Defibrator Industries AB · 1997