B28C 5/142
The stirrer shaft carrying screw-blades
Official title: {the stirrer shaft carrying screw-blades}
B28C5/142 (The stirrer shaft carrying screw-blades) appears on 38 US grants and 28 published applications in this corpus.
Search patents in B28C- Granted patents
- 38
- Published applications
- 28
- Assignees
- 23
- Inventors
- 91
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 3 |
| 2018 | 1 | 4 |
| 2019 | 2 | 2 |
| 2020 | 6 | 3 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 2 | 0 |
| 2024 | 2 | 3 |
| 2025 | 4 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mixer, system for applying a building material and method for producing a structure from building material21 Apr 2026US 12,605,862 B2Sika Technology AG
- Modular concrete production system and method30 Dec 2025US 12,508,740 B1
- Volumetric concrete mixing system, equipment, and method23 Sep 2025US 12,420,451 B1J&P Invesco LLC
- Method for adapting an existing concrete products forming machine for forming infused concrete products11 Feb 2025US 12,221,391 B2Columbia Machine, Inc.
- Apparatus for gas entrainment via nano-bubbles into concrete upstream from a product mold11 Feb 2025US 12,221,392 B2Columbia Machine, Inc.
- Mobile Batch Plant18 Jun 2026US 2026/0166776 A1Rufdiamond Ltd.
- Mixer, system for applying a building material and method for producing a structure from building material7 Nov 2024US 2024/0367345 A1Sika Technology AG
- System and method for placing and circulating concrete18 Jul 2024US 2024/0239013 A1Steelike, Inc.
- Mixer, system for applying a building material and method for producing a structure from building material6 Jun 2024US 2024/0181676 A1Sika Technology AG
- Method for adapting an existing concrete products forming machine for forming infused concrete products1 Dec 2022US 2022/0380266 A1Columbia Machine, Inc.
Most cited
By later US patents
- Portable continual mixer28US 5,609,416 A1997
- Apparatus for metering and mixing aggregate and cement23US 5,785,420 A1998
- Self-cleaning mixer for cement slurry20US 5,718,508 AHaltec Corporation · 1998
- Apparatus for metering and mixing aggregate and cement18US 5,624,183 A1997
- Mixing apparatus9US 4,193,696 ABurgos Pty. Limited · 1980