B81B 3/0089
Chemical or biological characteristics
Official title: {Chemical or biological characteristics, e.g. layer which makes a surface chemically active}
B81B3/0089 (Chemical or biological characteristics) appears on 29 US grants and 39 published applications in this corpus.
Search patents in B81B- Granted patents
- 29
- Published applications
- 39
- Assignees
- 31
- Inventors
- 131
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 1 |
| 2018 | 4 | 4 |
| 2019 | 2 | 8 |
| 2020 | 5 | 2 |
| 2021 | 2 | 5 |
| 2022 | 5 | 4 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Microfluidic chip19 Aug 2025US 12,390,809 B2Beijing BOE Sensor Technology Co., Ltd.
- Expansion mediated adhesive device12 Aug 2025US 12,384,945 B2BVW Holding AG
- Microfluidic chip and fabrication method5 Nov 2024US 12,134,097 B2Shanghai Tianma Micro-Electronics Co., Ltd.
- Modification to rough polysilicon using ion implantation and silicide9 Apr 2024US 11,952,267 B2InvenSense, Inc.
- Graphene membrane microfluidic system18 Oct 2022US 11,471,838 B1Triad National Security, LLC
- Expansion mediated adhesive device21 May 2026US 2026/0139166 A1
- Micro-electro-mechanical system package and fabrication method thereof8 May 2025US 2025/0145452 A1Vanguard International Semiconductor Corporation
- Microfluidic chip and fabrication method6 Jul 2023US 2023/0211345 A1Shanghai Tianma Micro-Electronics Co., Ltd.
- Method for Creating Hydrophilic Surfaces or Surface Regions on a Substrate8 Dec 2022US 2022/0388839 A1Robert Bosch GmbH
- Microfluidic chip6 Oct 2022US 2022/0314217 A1Beijing BOE Sensor Technology Co., Ltd.
Most cited
By later US patents
- Micromechanical piezoelectric device69US 6,953,977 B2Boston MicroSystems, Inc. · 2005
- Micromechanical device with an epitaxial layer28US 6,627,965 B1Boston MicroSystems, Inc. · 2003
- Resonant sensor and sensing system26US 7,178,378 B2BioScale, Inc. · 2007
- Methods for depositing a measured amount of a species in a sealed cavity2US 10,544,039 B2Texas Instruments Incorporated · 2020
- Pressure sensor2US 9,958,349 B2InvenSense, Inc. · 2018