B01F 33/3011
Using a sheathing stream of a fluid surrounding a central stream of
Official title: using a sheathing stream of a fluid surrounding a central stream of a different fluid, e.g. for reducing the cross-section of the central stream or to produce droplets from the central stream
B01F33/3011 (Using a sheathing stream of a fluid surrounding a central stream of) appears on 334 US grants and 450 published applications in this corpus.
Search patents in B01F- Granted patents
- 334
- Published applications
- 450
- Assignees
- 160
- Inventors
- 585
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 6 |
| 2002 | 11 | 10 |
| 2003 | 5 | 10 |
| 2004 | 2 | 13 |
| 2005 | 3 | 13 |
| 2006 | 3 | 11 |
| 2007 | 4 | 7 |
| 2008 | 6 | 16 |
| 2009 | 7 | 15 |
| 2010 | 6 | 17 |
| 2011 | 7 | 14 |
| 2012 | 10 | 22 |
| 2013 | 8 | 18 |
| 2014 | 16 | 20 |
| 2015 | 23 | 16 |
| 2016 | 19 | 17 |
| 2017 | 18 | 29 |
| 2018 | 19 | 32 |
| 2019 | 22 | 28 |
| 2020 | 34 | 36 |
| 2021 | 24 | 29 |
| 2022 | 15 | 15 |
| 2023 | 20 | 20 |
| 2024 | 21 | 12 |
| 2025 | 11 | 18 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Large scale microdroplet generation apparatus and methods of manufacturing thereof6 Oct 2026US 12,752,269 B2The Trustees of the University of Pennsylvania
- Droplet generator14 Apr 2026US 12,599,905 B2Zhejiang Dapu Biotechnology Co., Ltd.
- Microdroplet/bubble generation device31 Mar 2026US 12,589,372 B2Japan Science and Technology Agency
- Systems and methods for barcoding nucleic acids17 Feb 2026US 12,551,860 B2President and Fellows of Harvard College
- Microsphere producing system and microsphere producing method13 Jan 2026US 12,521,348 B2Inventage Lab Inc.
- Microfluidic mixing1 Oct 2026US 2026/0295545 A1Syngenta Crop Protection AG
- Assays and other reactions involving droplets16 Jul 2026US 2026/0201436 A1President and Fellows of Harvard College
- Methods of lipid nanoparticle production in cross-mixers28 May 2026US 2026/0146262 A1ModernaTX, Inc.
- Modular multiple nozzle system with interchangeable hub-chip configuration for production of multi-layer droplets and fibers and method therefor21 May 2026US 2026/0138104 A1Lawrence Livermore National Security, LLC
- Flow reactor16 Apr 2026US 2026/0102752 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Focusing of microparticles in microfluidic systems442US 6,592,821 B1Caliper Technologies Corp. · 2003
- Method and apparatus for fluid dispersion418US 7,708,949 B2Governing Council of the Univ. of Toronto, The · 2010
- Process for producing emulsion and microcapsules and apparatus therefor402US 7,268,167 B2Japan Science and Technology Agency · 2007
- Apparatus and method for performing microfluidic manipulations for chemical analysis and synthesis396US 5,858,195 ALockheed Martin Energy Research Corporation · 1999
- Apparatus and method for performing electrodynamic focusing on a microchip394US 5,858,187 ALockheed Martin Energy Systems, Inc. · 1999