B29B 7/802
Constructions or methods for cleaning the mixing or kneading device
Official title: {Constructions or methods for cleaning the mixing or kneading device (cleaning in general B08B)}
B29B7/802 (Constructions or methods for cleaning the mixing or kneading device) appears on 126 US grants and 103 published applications in this corpus.
Search patents in B29B- Granted patents
- 126
- Published applications
- 103
- Assignees
- 92
- Inventors
- 275
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 5 |
| 2005 | 1 | 6 |
| 2006 | 2 | 0 |
| 2007 | 4 | 3 |
| 2008 | 3 | 6 |
| 2009 | 3 | 2 |
| 2010 | 3 | 1 |
| 2011 | 2 | 7 |
| 2012 | 3 | 3 |
| 2013 | 1 | 4 |
| 2014 | 5 | 7 |
| 2015 | 3 | 8 |
| 2016 | 3 | 3 |
| 2017 | 10 | 8 |
| 2018 | 4 | 8 |
| 2019 | 4 | 6 |
| 2020 | 5 | 3 |
| 2021 | 2 | 0 |
| 2022 | 8 | 9 |
| 2023 | 2 | 2 |
| 2024 | 3 | 4 |
| 2025 | 5 | 4 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Planetary roller extruder for processing biodegradable materials and method for cleaning the planetary roller extruder17 Feb 2026US 12,552,080 B2Battenfeld-Cincinnati Germany GmbH
- Multi-directional casting nozzle13 Jan 2026US 12,521,925 B2PPG Industries Ohio, Inc.
- Mixing and extrusion machine with self-cleaning twin screw and method of use30 Dec 2025US 12,508,742 B2Compagnie Generale Des Etablissements Michelin
- Feeding screw machine for feeding a processing screw machine14 Oct 2025US 12,440,814 B2Coperion GmbH
- Lubricated mixing device for reaction plastics and method for generating reaction plastics19 Aug 2025US 12,390,778 B2KraussMaffei Technologies GmbH
- High pressure mixing head for continuously producing polymeric foam20 Nov 2025US 2025/0353217 A1Afros S. P. A.
- Housing cleaning device for cleaning a housing of a screw machine23 Oct 2025US 2025/0326012 A1Coperion GmbH
- Injection head for expandable polymer foams with anti-seize control21 Aug 2025US 2025/0262631 A1Astom Corporation
- Planetary roller extruder for processing biodegradable materials and method for cleaning the planetary roller extruder16 Jan 2025US 2025/0018631 A1Battenfeld-Cincinnati Germany GmbH
- Plural component spray gun system21 Nov 2024US 2024/0382986 A1Wagner Spray Tech Corporation
Most cited
By later US patents
- Continuous mixer for liquids with rotor and casing gap adjustment57US 5,902,042 ADow Corning Toray Silicone Co., Ltd. · 1999
- Injection system for foamable compositions55US 4,898,327 ASealed Air Corporation · 1990
- System for filling a mold with reactive synthetic-resin components50US 3,975,128 AKrauss-Maffei Aktiengesellschaft · 1976
- Foam dispensing apparatus47US 3,945,569 AInstapak Corporation · 1976
- Metering and mixing apparatus for multiple component45US 4,265,858 ANordson Corporation · 1981