B01L 2400/0694
Vents used to stop and induce flow, backpressure valves
Official title: vents used to stop and induce flow, backpressure valves
B01L2400/0694 (Vents used to stop and induce flow, backpressure valves) appears on 268 US grants and 358 published applications in this corpus.
Search patents in B01L- Granted patents
- 268
- Published applications
- 358
- Assignees
- 178
- Inventors
- 609
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 7 |
| 2003 | 5 | 5 |
| 2004 | 1 | 9 |
| 2005 | 2 | 10 |
| 2006 | 3 | 10 |
| 2007 | 2 | 9 |
| 2008 | 12 | 12 |
| 2009 | 6 | 7 |
| 2010 | 2 | 4 |
| 2011 | 4 | 9 |
| 2012 | 6 | 11 |
| 2013 | 6 | 15 |
| 2014 | 9 | 21 |
| 2015 | 13 | 29 |
| 2016 | 17 | 20 |
| 2017 | 20 | 23 |
| 2018 | 21 | 24 |
| 2019 | 21 | 21 |
| 2020 | 21 | 24 |
| 2021 | 11 | 17 |
| 2022 | 18 | 14 |
| 2023 | 13 | 18 |
| 2024 | 20 | 17 |
| 2025 | 10 | 13 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Fluidic module and method for generating spatially separated liquid partitions23 Apr 2026US 2026/0108884 A1Hahn-Schickard-Gesellschaft FüR Angewandte Forschung E. V.
- A Metering Stack and System for Collecting a Target Sample for Testing2 Apr 2026US 2026/0091387 A1Google Inc.
Most cited
By later US patents
- Capillary flow device951US 4,963,498 ABiotrack, Inc. · 1990
- Moving microdroplets561US 6,130,098 AThe Regents of the University of Michigan · 2000
- Capillary flow device522US 4,756,884 ABiotrack, Inc. · 1988
- Fluid circuit components based upon passive fluid dynamics399US 6,296,020 B1BioMicro Systems, Inc. · 2001
- Integrated active flux microfluidic devices and methods385US 6,767,706 B2California Institute of Technology · 2004