B01L 2400/0457
Passive flow or gravitation
Official title: passive flow or gravitation
B01L2400/0457 (Passive flow or gravitation) appears on 439 US grants and 705 published applications in this corpus.
Search patents in B01L- Granted patents
- 439
- Published applications
- 705
- Assignees
- 347
- Inventors
- 1,397
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 4 |
| 2002 | 6 | 28 |
| 2003 | 4 | 9 |
| 2004 | 11 | 25 |
| 2005 | 5 | 21 |
| 2006 | 11 | 17 |
| 2007 | 8 | 8 |
| 2008 | 9 | 9 |
| 2009 | 5 | 23 |
| 2010 | 11 | 15 |
| 2011 | 10 | 14 |
| 2012 | 10 | 24 |
| 2013 | 12 | 27 |
| 2014 | 20 | 15 |
| 2015 | 13 | 37 |
| 2016 | 22 | 37 |
| 2017 | 22 | 43 |
| 2018 | 24 | 48 |
| 2019 | 32 | 52 |
| 2020 | 37 | 37 |
| 2021 | 33 | 54 |
| 2022 | 19 | 39 |
| 2023 | 21 | 25 |
| 2024 | 36 | 45 |
| 2025 | 24 | 32 |
| 2026 | 14 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gravity flow micro-physiological article and determining a physiological response to a drug8 Sep 2026US 12,728,415 B2Government of the United States of America, AS Represented By the Secretary of Commerce
- Point of need diagnostic with thermal control23 Jun 2026US 12,661,655 B2Arizona Board of Regents on behalf of Arizona State University
- Microfluidic device for detecting nucleic acids2 Jun 2026US 12,643,101 B2Korea University Research and Business Foundation
- Tissue sampling kit2 Jun 2026US 12,644,797 B2Identigen Limited
- Agricultural sampling system and related methods2 Jun 2026US 12,644,877 B2Precision Planting LLC
- Point of Need Diagnostic With Thermal Control17 Sep 2026US 2026/0273534 A1Arizona Board of Regents on behalf of Arizona State University
- Microparticle sampling and chemical treatment17 Sep 2026US 2026/0276493 A1Hong Kong Applied Science and Technology Research Institute Company Limited
- Sampling device6 Aug 2026US 2026/0225100 A1
- Nucleic Acid Amplification Chip, Nucleic Acid Amplification Device, and Nucleic Acid Amplification Method16 Jul 2026US 2026/0199896 A1National Institute of Advanced Industrial Science and Technology
- Testing system25 Jun 2026US 2026/0175228 A1Leadway (Hk) Limited
Most cited
By later US patents
- Capillary stop-flow junction having improved stability against accidental fluid flow311US 5,230,866 ABiotrack, Inc. · 1993
- Analytical cartridge and system for detecting analytes in liquid samples292US 5,223,219 ABiotrack, Inc. · 1993
- Simultaneous analyte determination and reference balancing in reference T-sensor devices226US 5,948,684 AUniversity of Washington · 1999
- Methods, compositions, and automated systems for separating rare cells from fluid samples163US 7,166,443 B2Aviva Biosciences Corporation · 2007
- Microfluidic analysis cartridge160US 6,488,896 B2Micronics, Inc. · 2002