F28D 2021/0045
For granular materials
Official title: {for granular materials}
F28D2021/0045 (For granular materials) appears on 63 US grants and 62 published applications in this corpus.
Search patents in F28D- Granted patents
- 63
- Published applications
- 62
- Assignees
- 54
- Inventors
- 136
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 3 |
| 2007 | 4 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 4 |
| 2011 | 1 | 5 |
| 2012 | 0 | 8 |
| 2013 | 2 | 6 |
| 2014 | 4 | 3 |
| 2015 | 7 | 1 |
| 2016 | 4 | 6 |
| 2017 | 6 | 0 |
| 2018 | 1 | 3 |
| 2019 | 1 | 3 |
| 2020 | 1 | 2 |
| 2021 | 2 | 6 |
| 2022 | 1 | 1 |
| 2023 | 3 | 1 |
| 2024 | 5 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Counterflow rotary cooler31 Mar 2026US 12,590,767 B2Industrial Process Systems, Inc.
- Modular vertical seed conditioner heating section5 Nov 2024US 12,134,746 B2Crown Iron Works Company
- Heat exchanger1 Oct 2024US 12,104,865 B2Promix Solutions AG
- Rotary batch and cullet preheater system and method10 Sep 2024US 12,084,375 B2
- Plate heat exchanger for heating or cooling bulk solids16 Apr 2024US 11,959,708 B2National Technology & Engineering Solutions of Sandia, LLC
- Rotary batch and cullet preheater system control scheme28 May 2026US 2026/0145979 A1
- Counterflow Rotary Cooler10 Apr 2025US 2025/0116467 A1Industrial Process Systems, Inc.
- Rotary batch and cullet preheater system and method21 Nov 2024US 2024/0383792 A1
- Rotary Batch And Cullet Preheater System And Method9 Feb 2023US 2023/0038523 A1
- Particle-based thermal energy storage systems3 Feb 2022US 2022/0034600 A1Alliance for Sustainable Energy, LLC
Most cited
By later US patents
- Method and device for controlling the temperature of a reaction carried out in a fluidized bed75US 4,552,203 ACreusot-Loire · 1985
- Flat heat exchanger plate and bulk material heat exchanger using the same47US 7,093,649 B22006
- Heating and/or drying apparatus27US 4,784,216 ACMI Corporation · 1988
- Fluidization apparatus22US 3,967,975 ACPC International Inc. · 1976
- Method and apparatus for cooling particulate solids22US 5,167,274 ACominco Ltd. · 1992