B01L 3/0289
Apparatus for withdrawing or distributing predetermined quantities of fluid
Official title: {Apparatus for withdrawing or distributing predetermined quantities of fluid}
B01L3/0289 (Apparatus for withdrawing or distributing predetermined quantities of fluid) appears on 658 US grants and 799 published applications in this corpus.
Search patents in B01L- Granted patents
- 658
- Published applications
- 799
- Assignees
- 458
- Inventors
- 1,698
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 14 | 0 |
| 1992 | 9 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 9 | 3 |
| 2002 | 6 | 22 |
| 2003 | 8 | 19 |
| 2004 | 13 | 25 |
| 2005 | 16 | 41 |
| 2006 | 7 | 53 |
| 2007 | 12 | 34 |
| 2008 | 20 | 26 |
| 2009 | 19 | 25 |
| 2010 | 20 | 36 |
| 2011 | 22 | 31 |
| 2012 | 20 | 15 |
| 2013 | 17 | 24 |
| 2014 | 22 | 34 |
| 2015 | 27 | 29 |
| 2016 | 18 | 30 |
| 2017 | 33 | 31 |
| 2018 | 19 | 36 |
| 2019 | 29 | 47 |
| 2020 | 30 | 46 |
| 2021 | 28 | 42 |
| 2022 | 33 | 58 |
| 2023 | 36 | 33 |
| 2024 | 31 | 25 |
| 2025 | 41 | 22 |
| 2026 | 10 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Microfluidic liquid delivery device22 Sep 2026US 12,741,279 B2Astraveus
- Liquid droplet forming apparatus28 Jul 2026US 12,691,463 B2Ricoh Company, Ltd.
- Method and device for laboratory formulation and chemical vending14 Jul 2026US 12,678,755 B2
- Microparticle filling method and microparticle filling device19 May 2026US 12,631,528 B2Hitachi High-Tech Corporation
- Mobile phase supply device with fluidically normally closed port and cap devices5 May 2026US 12,616,968 B2Agilent Technologies, Inc.
- Method and Device For Laboratory Formulation and Chemical Vending8 Oct 2026US 2026/0307029 A1
- Density gradient formation with sample particles20 Aug 2026US 2026/0241380 A1Beckman Coulter, Inc.
- Cultureware with Pipette Resting Ledges13 Aug 2026US 2026/0233215 A1XDemics Corporation
- Cultureware Slope Features for Seed Cell Concentration13 Aug 2026US 2026/0234522 A1XDemics Corporation
- Methods for Purging Bubbles from Cultureware Microfeatures13 Aug 2026US 2026/0234525 A1XDemics Corporation
Most cited
By later US patents
- Dispensing assembly with interchangeable cartridge pumps312US 5,316,452 AGilbert Corporation · 1994
- Method and apparatus for making miniaturized diagnostic arrays302US 5,658,802 AMicroFab Technologies, Inc. · 1997
- Electrohydrodynamic receptor288US 5,980,719 ASarnoff Corporation · 1999
- Integrated chip carriers with thermocycler interfaces and methods of using the same187US 7,704,735 B2Fluidigm Corporation · 2010
- Method for transferring micro quantities of liquid samples to discrete locations185US 5,849,598 AWashington University · 1998