B02C 4/30
Shape or construction of rollers
B02C4/30 (Shape or construction of rollers) appears on 216 US grants and 238 published applications in this corpus.
Search patents in B02C- Granted patents
- 216
- Published applications
- 238
- Assignees
- 152
- Inventors
- 461
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 8 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 5 |
| 2003 | 4 | 1 |
| 2004 | 2 | 4 |
| 2005 | 0 | 3 |
| 2006 | 2 | 5 |
| 2007 | 3 | 3 |
| 2008 | 2 | 2 |
| 2009 | 3 | 7 |
| 2010 | 3 | 7 |
| 2011 | 4 | 6 |
| 2012 | 8 | 18 |
| 2013 | 10 | 19 |
| 2014 | 6 | 21 |
| 2015 | 6 | 15 |
| 2016 | 18 | 22 |
| 2017 | 14 | 15 |
| 2018 | 7 | 14 |
| 2019 | 6 | 12 |
| 2020 | 12 | 7 |
| 2021 | 16 | 13 |
| 2022 | 4 | 13 |
| 2023 | 11 | 8 |
| 2024 | 7 | 8 |
| 2025 | 8 | 5 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of crushing and processing grain without destroying germ pouches in the grain9 Jun 2026US 12,649,157 B2
- Roller crusher and a method for operating the same30 Dec 2025US 12,508,595 B2Metso USA Inc.
- Spur wheel scraper30 Dec 2025US 12,508,597 B2Metso USA Inc.
- Arrangement for ensuring even pressure distribution for hydraulic roller press9 Sep 2025US 12,409,455 B2FLSmidth Cement A/S
- Process for connecting functional elements to a shaft17 Jun 2025US 12,331,788 B2BASF SE
- Glass breaker for breaking glass containers13 Aug 2026US 2026/0233234 A1
- Corner block segment for a roll of a comminution device18 Jun 2026US 2026/0166556 A1FLSmidth A/S
- Shredding device14 May 2026US 2026/0131333 A1Komptech GmbH
- System for the processing of powder material and associated lump breaker device, in particular for a production plant of brake pads12 Feb 2026US 2026/0043449 A1ITT Italia S.r.l.
- A dual roller for compressing and/or puncturing plastic or metal items and use of the rollers15 Jan 2026US 2026/0014603 A1Varig Group Aps
Most cited
By later US patents
- Wear-resistant surface armoring for the rollers of roller machines, particularly high-pressure roller presses52US 5,203,513 AKloeckner-Humboldt-Deutz AG · 1993
- Roll press for crushing abrasive materials40US 6,086,003 AMaschinenfabrik Koppern GmbH & Co. KG · 2000
- Wear-resistant grinding drum for employment in roller machines, particularly in high-pressure roll presses38US 5,269,477 AKloeckner-Humboldt-Deutz AG · 1993
- Method of making a crushing roll38US 5,755,033 AMaschinenfabrik Koppern GmbH & Co. KG · 1998
- Grinding roller for the pressure comminution of granular material32US 7,497,396 B2KHD Humboldt Wedag GmbH · 2009