B01J 2219/00002
Chemical plants
B01J2219/00002 (Chemical plants) appears on 2,583 US grants and 3,175 published applications in this corpus.
Search patents in B01J- Granted patents
- 2,583
- Published applications
- 3,175
- Assignees
- 1,327
- Inventors
- 6,745
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 8 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 6 | 0 |
| 1998 | 12 | 0 |
| 1999 | 15 | 0 |
| 2000 | 21 | 0 |
| 2001 | 36 | 25 |
| 2002 | 46 | 95 |
| 2003 | 56 | 139 |
| 2004 | 76 | 154 |
| 2005 | 78 | 139 |
| 2006 | 99 | 165 |
| 2007 | 63 | 157 |
| 2008 | 86 | 129 |
| 2009 | 116 | 164 |
| 2010 | 133 | 155 |
| 2011 | 120 | 160 |
| 2012 | 122 | 135 |
| 2013 | 137 | 110 |
| 2014 | 107 | 128 |
| 2015 | 108 | 157 |
| 2016 | 119 | 109 |
| 2017 | 94 | 91 |
| 2018 | 93 | 109 |
| 2019 | 100 | 102 |
| 2020 | 95 | 150 |
| 2021 | 127 | 186 |
| 2022 | 111 | 115 |
| 2023 | 133 | 87 |
| 2024 | 84 | 101 |
| 2025 | 61 | 69 |
| 2026 | 36 | 44 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Upgrading bio-waste in FCC29 Sep 2026US 12,747,397 B2ExxonMobil Technology and Engineering Company
- System and method for the control of biomass conversion systems22 Sep 2026US 12,741,262 B2Takachar Limited
- Apparatus and method for control of cell processing system15 Sep 2026US 12,734,521 B2Cellares Corporation
- Process for polymerizing molecular-weight controlled polymer8 Sep 2026US 12,729,255 B2Korea Research Institute of Chemical Technology
- Olefin polymerization method and system1 Sep 2026US 12,723,108 B2China Petroleum & Chemical Corporation
- Modular multiplatform system for mrna drug production8 Oct 2026US 2026/0306407 A1BioNTech SE
- The method of obtaining polyacrylamide hydrogels through continuous frontal polymerization8 Oct 2026US 2026/0307050 A1Green Evolution Technologies, Inc.
- Horizontal polymerization reactor for producing propylene-based polymer and method for producing propylene-based polymer17 Sep 2026US 2026/0273496 A1Japan Polypropylene Corporation
- System for producing technical grade ammonium nitrate and method of producing thereof17 Sep 2026US 2026/0274696 A1Yara International Asa
- Microreactor for implementing continuous chemical processes involving solids10 Sep 2026US 2026/0264041 A1
Most cited
By later US patents
- High solids slurry polymerization532US 6,239,235 B1Phillips Petroleum Company · 2001
- Continuous slurry polymerization process and appparatus462US 6,833,415 B2ExxonMobil Chemical Patents Inc. · 2004
- Method for the production of hydrogen-containing gaseous mixtures233US 6,685,754 B2Alchemix Corporation · 2004
- Methanol plant retrofit for acetic acid manufacture208US 6,232,352 B1Acetex limited · 2001
- Parallel reactor with internal sensing193US 6,306,658 B1Symyx Technologies, Inc. · 2001