B01J 4/00
Feed or outlet devices
Official title: Feed {or outlet} devices; Feed or outlet control devices (feed or outlet devices for pressure vessels B01J3/02 {; feeding of particles into and evacuation of particles out of the reactor B01J8/0015})
B01J4/00 (Feed or outlet devices) appears on 1,907 US grants and 2,104 published applications in this corpus.
Search patents in B01J- Granted patents
- 1,907
- Published applications
- 2,104
- Assignees
- 1,277
- Inventors
- 5,664
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 23 | 0 |
| 1978 | 9 | 0 |
| 1979 | 12 | 0 |
| 1980 | 20 | 0 |
| 1981 | 14 | 0 |
| 1982 | 16 | 0 |
| 1983 | 11 | 0 |
| 1984 | 18 | 0 |
| 1985 | 10 | 0 |
| 1986 | 18 | 0 |
| 1987 | 10 | 0 |
| 1988 | 7 | 0 |
| 1989 | 14 | 0 |
| 1990 | 17 | 0 |
| 1991 | 14 | 0 |
| 1992 | 11 | 0 |
| 1993 | 13 | 0 |
| 1994 | 18 | 0 |
| 1995 | 24 | 0 |
| 1996 | 18 | 0 |
| 1997 | 18 | 0 |
| 1998 | 32 | 0 |
| 1999 | 22 | 0 |
| 2000 | 29 | 0 |
| 2001 | 23 | 9 |
| 2002 | 24 | 35 |
| 2003 | 20 | 35 |
| 2004 | 22 | 43 |
| 2005 | 22 | 67 |
| 2006 | 31 | 70 |
| 2007 | 21 | 74 |
| 2008 | 41 | 61 |
| 2009 | 49 | 70 |
| 2010 | 38 | 85 |
| 2011 | 44 | 64 |
| 2012 | 56 | 50 |
| 2013 | 55 | 70 |
| 2014 | 45 | 84 |
| 2015 | 77 | 90 |
| 2016 | 66 | 85 |
| 2017 | 65 | 70 |
| 2018 | 81 | 101 |
| 2019 | 74 | 96 |
| 2020 | 107 | 158 |
| 2021 | 106 | 136 |
| 2022 | 99 | 140 |
| 2023 | 115 | 124 |
| 2024 | 82 | 118 |
| 2025 | 88 | 107 |
| 2026 | 50 | 62 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 1-methylcyclopropene generation apparatus29 Sep 2026US 12,746,525 B2Ecoplants Co.,Ltd.
- Device for continuously producing hydrogen from polyester plastics by photocatalytic degradation15 Sep 2026US 12,734,500 B2Tianjin University
- Fluidic seal apparatus for continuous polymerization process25 Aug 2026US 12,715,940 B2Braskem S/A
- Polyolefin production apparatus and polyolefin production method18 Aug 2026US 12,708,889 B2Sumitomo Chemical Company, Limited
- Char collector18 Aug 2026US 12,710,174 B2Scanship AS
- Method for operating lock hopper and solid movement device24 Sep 2026US 2026/0284620 A1Mitsubishi Heavy Industries, Ltd.
- Horizontal polymerization reactor for producing propylene-based polymer and method for producing propylene-based polymer17 Sep 2026US 2026/0273496 A1Japan Polypropylene Corporation
- Metal phosphide-graphene aerogel catalyst for hydrolysis of ammonia borane, method for preparing the same, and hydrogen production system for hydrolysis of ammonia borane comprising the same10 Sep 2026US 2026/0264069 A1The Hong Kong Polytechnic University
- Reactors and their special design suitable for a high flexible and robust polycarbonate plant, in particular by means of a pre-transesterification technology20 Aug 2026US 2026/0241359 A1Epc Engineering & Technologies GmbH
- Systems and methods for dispersion of dry powders20 Aug 2026US 2026/0241361 A1
Most cited
By later US patents
- Methods for fabricating microarrays of biological samples867US 5,807,522 AThe Board of Trustees of the Leland Stanford Junior University · 1998
- Vapor mass flow control system702US 4,436,674 AJ. C. Schumacher Co. · 1984
- Vapor mass flow control system629US 4,393,013 AJ. C. Schumacher Co. · 1983
- High solids slurry polymerization532US 6,239,235 B1Phillips Petroleum Company · 2001
- Method and system for inhibiting cross-contamination in fluids of combinatorial chemistry device491US 5,603,351 ADavid Sarnoff Research Center, Inc. · 1997