B01J 19/1837
Loop-type reactors
Official title: {Loop-type reactors}
B01J19/1837 (Loop-type reactors) appears on 234 US grants and 234 published applications in this corpus.
Search patents in B01J- Granted patents
- 234
- Published applications
- 234
- Assignees
- 73
- Inventors
- 350
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 8 | 5 |
| 2002 | 7 | 6 |
| 2003 | 4 | 16 |
| 2004 | 6 | 10 |
| 2005 | 5 | 14 |
| 2006 | 6 | 9 |
| 2007 | 2 | 9 |
| 2008 | 7 | 7 |
| 2009 | 7 | 9 |
| 2010 | 10 | 12 |
| 2011 | 15 | 14 |
| 2012 | 7 | 5 |
| 2013 | 11 | 14 |
| 2014 | 14 | 18 |
| 2015 | 9 | 11 |
| 2016 | 18 | 12 |
| 2017 | 11 | 8 |
| 2018 | 5 | 8 |
| 2019 | 6 | 9 |
| 2020 | 13 | 13 |
| 2021 | 12 | 9 |
| 2022 | 3 | 3 |
| 2023 | 9 | 6 |
| 2024 | 4 | 4 |
| 2025 | 1 | 1 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polymerization process and reactor for controlling molecular weight distribution and comonomer composition distribution28 Apr 2026US 12,611,646 B2Borealis AG
- Loop slurry reactor cooling processes and systems14 Apr 2026US 12,599,887 B2Chevron Phillips Chemical Company LP
- Systems and techniques for heating polymer reactor flashlines24 Mar 2026US 12,583,946 B2Chevron Phillips Chemical Company LP
- Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactor14 Jan 2025US 12,195,562 B2Chevron Phillips Chemical Company LP
- Polypropylene pipe composition5 Nov 2024US 12,134,688 B2Borealis AG
- Systems and techniques for heating polymer reactor flashlines9 Jul 2026US 2026/0193387 A1Chevron Phillips Chemical Company LP
- Fluid reactor14 May 2026US 2026/0131302 A1The University of Adelaide
- Systems and Methods for Continuous Carbonization Processes18 Dec 2025US 2025/0381542 A1Paebbl AB
- Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactor5 Dec 2024US 2024/0400729 A1Chevron Phillips Chemical Company LP
- Gas phase polymerization process with improved gas recycling17 Oct 2024US 2024/0343839 A1Borealis AG
Most cited
By later US patents
- High solids slurry polymerization532US 6,239,235 B1Phillips Petroleum Company · 2001
- Process and apparatus for separating diluents from solid polymers utilizing a two-stage flash and a cyclone separator494US 5,575,979 APhillips Petroleum Company · 1996
- Diluent slip stream to give catalyst wetting agent491US 6,262,191 B1Phillips Petroleum Company · 2001
- Continuous slurry polymerization process and appparatus462US 6,833,415 B2ExxonMobil Chemical Patents Inc. · 2004
- Loop reactor settling leg system for separation of solid polymers and liquid diluent153US 4,613,484 APhillips Petroleum Company · 1986