B65G 53/18
Through a porous wall
Official title: through a porous wall
B65G53/18 (Through a porous wall) appears on 164 US grants and 81 published applications in this corpus.
Search patents in B65G- Granted patents
- 164
- Published applications
- 81
- Assignees
- 116
- Inventors
- 275
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 3 |
| 2003 | 4 | 4 |
| 2004 | 5 | 2 |
| 2005 | 0 | 2 |
| 2006 | 3 | 4 |
| 2007 | 1 | 4 |
| 2008 | 5 | 4 |
| 2009 | 2 | 5 |
| 2010 | 2 | 3 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 5 | 3 |
| 2014 | 2 | 5 |
| 2015 | 4 | 7 |
| 2016 | 5 | 4 |
| 2017 | 6 | 5 |
| 2018 | 4 | 12 |
| 2019 | 8 | 3 |
| 2020 | 9 | 2 |
| 2021 | 2 | 1 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus for conveying polyolefin particles8 Sep 2026US 12,729,076 B2JSP International SARL
- Powder feeder7 Apr 2026US 12,594,722 B2C4 Carbides Limited
- Powder supply hopper pressurizing apparatus, gasifier unit, integrated gasification combined cycle and control method of powder supply hopper pressurizing apparatus7 Oct 2025US 12,434,923 B2Mitsubishi Heavy Industries, Ltd.
- Powder feeder17 Oct 2023US 11,787,119 B2C4 Carbides Limited
- Precision flow feeding device25 Jul 2023US 11,708,225 B2REEL Alesa AG
- Powder Feeder28 May 2026US 2026/0145388 A1C4 Carbides Limited
- Apparatus for conveying polyolefin particles20 Mar 2025US 2025/0091818 A1JSP International SARL
- Powder Feeder28 Dec 2023US 2023/0415417 A1C4 Carbides Limited
- Precision flow feeding device9 Jun 2022US 2022/0177238 A1REEL Alesa AG
- Powder feeder23 Sep 2021US 2021/0291453 A1C4 Carbides Limited
Most cited
By later US patents
- Particulate delivery system86US 5,071,289 AAlpheus Cleaning Technologies Corp. · 1991
- Fluidized bed discharge bin61US 5,096,096 AThomas Conveyor Company · 1992
- Powder packing method and apparatus therefor45US 6,679,301 B2Ricoh Company, Ltd. · 2004
- Pneumatic powder transport system44US 7,296,599 B23D Systems, Inc. · 2007
- Constant discharge device in a conveyor for powdery and granular materials40US 4,502,819 ADenka Engineering Kabushiki Kaisha · 1985