B81B 2201/054
Microvalves
B81B2201/054 (Microvalves) appears on 111 US grants and 114 published applications in this corpus.
Search patents in B81B- Granted patents
- 111
- Published applications
- 114
- Assignees
- 60
- Inventors
- 198
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 7 |
| 2002 | 5 | 5 |
| 2003 | 4 | 3 |
| 2004 | 5 | 4 |
| 2005 | 4 | 5 |
| 2006 | 5 | 8 |
| 2007 | 4 | 4 |
| 2008 | 1 | 9 |
| 2009 | 4 | 7 |
| 2010 | 4 | 5 |
| 2011 | 2 | 4 |
| 2012 | 6 | 3 |
| 2013 | 1 | 2 |
| 2014 | 6 | 5 |
| 2015 | 4 | 4 |
| 2016 | 3 | 1 |
| 2017 | 2 | 2 |
| 2018 | 3 | 8 |
| 2019 | 3 | 9 |
| 2020 | 5 | 4 |
| 2021 | 5 | 7 |
| 2022 | 6 | 3 |
| 2023 | 7 | 1 |
| 2024 | 5 | 2 |
| 2025 | 3 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Low-cost microfluidic devices and systems and method of manufacturing25 Nov 2025US 12,478,962 B1Corporation for National Research Initiatives
- Micro-electro-mechanical system fluid control20 May 2025US 12,304,804 B2Water Stuff & Sun GmbH
- Integrated microfluidic system and method of fabrication14 Jan 2025US 12,194,464 B1Corporation for National Research Initiatives
- Venting device, manufacturing method of venting device, venting method and device3 Dec 2024US 12,157,663 B2xMEMS Labs, Inc.
- Microfluidic chip and valve, production process and uses25 Jun 2024US 12,017,220 B2Curiosity Diagnostics Sp. Z O.O.
- Micro electro mechanical system device25 Jun 2026US 2026/0176129 A1Beijing BOE Technology Development Co., Ltd.
- Microfluidic valve29 May 2025US 2025/0170576 A1Emerging Viral Diagnostics (Hk) Limited
- Micro-electro-mechanical system fluid control22 Aug 2024US 2024/0279048 A1Water Stuff & Sun GmbH
- Venting device, manufacturing method of venting device, venting method and device8 Aug 2024US 2024/0262679 A1xMEMS Labs, Inc.
- Electrostatically gated nanofluidic membranes for control of molecular transport9 Feb 2023US 2023/0043407 A1The Methodist Hospital System
Most cited
By later US patents
- Microfabricated elastomeric valve and pump systems619US 6,408,878 B1California Institute of Technology · 2002
- Method of making a microfabricated elastomeric valve294US 6,793,753 B2California Institute of Technology · 2004
- Boron nutride membrane in wafer structure239US 5,270,125 ARedwood Microsystems, Inc. · 1993
- Micropump with valve structure206US 5,259,737 ASeiko Epson Corporation · 1993
- Microfabricated elastomeric valve and pump systems198US 6,929,030 B2California Institute of Technology · 2005