B01J 2219/32237
Sheets comprising apertures or perforations
B01J2219/32237 (Sheets comprising apertures or perforations) appears on 231 US grants and 153 published applications in this corpus.
Search patents in B01J- Granted patents
- 231
- Published applications
- 153
- Assignees
- 106
- Inventors
- 460
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 9 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 7 |
| 2002 | 12 | 8 |
| 2003 | 14 | 9 |
| 2004 | 5 | 12 |
| 2005 | 4 | 4 |
| 2006 | 6 | 4 |
| 2007 | 1 | 6 |
| 2008 | 5 | 6 |
| 2009 | 8 | 2 |
| 2010 | 0 | 5 |
| 2011 | 2 | 5 |
| 2012 | 4 | 5 |
| 2013 | 1 | 6 |
| 2014 | 4 | 4 |
| 2015 | 7 | 11 |
| 2016 | 7 | 5 |
| 2017 | 4 | 1 |
| 2018 | 5 | 9 |
| 2019 | 3 | 5 |
| 2020 | 5 | 8 |
| 2021 | 8 | 9 |
| 2022 | 7 | 6 |
| 2023 | 6 | 4 |
| 2024 | 4 | 6 |
| 2025 | 7 | 5 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gas-liquid contactor with packing for capturing carbon dioxide6 Oct 2026US 12,752,251 B2Carbon Engineering ULC
- Reactor for the synthesis of urea14 Jul 2026US 12,679,803 B2Casale SA
- Packing element, structured packing and use of structured packing14 Apr 2026US 12,599,889 B2East China University of Science and Technology
- Continuous production system for alcohol ester C-1213 Jan 2026US 12,521,692 B2Runtai New Material Co., Ltd.
- High surface-area contactor media for improved gas-liquid contactors18 Nov 2025US 12,472,461 B2Intrls, Inc.
- High surface-area contactor media for improved gas-liquid contactors19 Mar 2026US 2026/0077297 A1Intrnls, Inc.
- Chemical flow-reactor13 Nov 2025US 2025/0345770 A1Johnson Matthey Public Limited Company
- High surface-area contactor media for improved gas-liquid contactors19 Jun 2025US 2025/0196056 A1Intrls, Inc.
- Mass transfer tray, use thereof, column having the same, and thermal separation process12 Jun 2025US 2025/0186902 A1BASF SE
- Reactor for the synthesis of urea24 Apr 2025US 2025/0128232 A1Casale SA
Most cited
By later US patents
- Packing element for an exchange column128US 4,296,050 ASulzer Brothers Limited · 1981
- Tower packing material and method91US 4,604,247 AGlitsch, Inc. · 1986
- Method of and apparatus for intermediate lamella vapor liquid contact83US 4,597,916 AGlitsch, Inc. · 1986
- Process and structure for effecting catalytic reactions in distillation structure77US 5,073,236 A1991
- Reactor and packing element for catalyzed chemical reactions70US 4,731,229 ASulzer Brothers Limited · 1988