B01J 4/004
Sparger-type elements
Official title: {Sparger-type elements}
B01J4/004 (Sparger-type elements) appears on 141 US grants and 193 published applications in this corpus.
Search patents in B01J- Granted patents
- 141
- Published applications
- 193
- Assignees
- 137
- Inventors
- 588
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 3 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 4 |
| 2011 | 1 | 5 |
| 2012 | 2 | 7 |
| 2013 | 4 | 5 |
| 2014 | 4 | 13 |
| 2015 | 10 | 8 |
| 2016 | 7 | 14 |
| 2017 | 10 | 10 |
| 2018 | 12 | 14 |
| 2019 | 14 | 7 |
| 2020 | 11 | 22 |
| 2021 | 13 | 13 |
| 2022 | 8 | 12 |
| 2023 | 11 | 18 |
| 2024 | 10 | 17 |
| 2025 | 12 | 14 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reaction kettle and coating preparation method using reaction kettle28 Jul 2026US 12,691,431 B2Haian Institute of High-Tech Research, Nanjing University
- Reactor sparger assembly10 Mar 2026US 12,569,819 B2Solugen, Inc.
- Ammonium nitrate reactor with static mixer3 Feb 2026US 12,539,501 B2Stamicarbon B. V.
- Multi-phase combination reaction system and reaction method23 Dec 2025US 12,503,658 B2China Petroleum & Chemical Corporation
- Inherently safe oxygen/hydrocarbon gas mixer9 Dec 2025US 12,491,479 B2NOVA Chemicals (International) S.A.
- Compound air loop reactor6 Aug 2026US 2026/0225064 A1Arizona Board of Regents on Behalf of the University of Arizona
- Neutralisation reactor and method of operating thereof23 Jul 2026US 2026/0209055 A1Yara International Asa
- Initiator Injection Line for High Pressure Polymerization16 Jul 2026US 2026/0199863 A1
- Process to produce a melt of urea and biuret and system to produce such a melt2 Jul 2026US 2026/0184674 A1Yara International Asa
- Fluidized-bed reactor for the gas-phase polymerization of olefins26 Mar 2026US 2026/0084131 A1Basell Poliolefine Italia S.r.l.
Most cited
By later US patents
- Process and apparatus for preparing uniform size polymer beads179US 4,444,961 AThe Dow Chemical Company · 1984
- Autocirculation apparatus51US 4,482,524 AARI Technologies, Inc. · 1984
- Reactor, a retained catalyst structure, and a method for improving decomposition of polysulfides and removal of hydrogen sulfide in liquid sulfur47US 8,361,432 B2Fluor Enterprises, Inc. · 2013
- Methods for producing improved stable polyethylene terephthalate25US 4,154,920 AOwens-Illinois, Inc. · 1979
- Reactors and systems for oxidative coupling of methane21US 10,377,682 B2Siluria Technologies, Inc. · 2019