B81B 1/002
Holes characterised by their shape, in either longitudinal or sectional plane
Official title: {Holes characterised by their shape, in either longitudinal or sectional plane}
B81B1/002 (Holes characterised by their shape, in either longitudinal or sectional plane) appears on 119 US grants and 158 published applications in this corpus.
Search patents in B81B- Granted patents
- 119
- Published applications
- 158
- Assignees
- 97
- Inventors
- 326
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 5 |
| 2003 | 0 | 3 |
| 2004 | 1 | 3 |
| 2005 | 5 | 6 |
| 2006 | 3 | 4 |
| 2007 | 5 | 0 |
| 2008 | 2 | 2 |
| 2009 | 1 | 4 |
| 2010 | 2 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 2 | 4 |
| 2014 | 2 | 8 |
| 2015 | 4 | 8 |
| 2016 | 5 | 7 |
| 2017 | 7 | 13 |
| 2018 | 6 | 7 |
| 2019 | 8 | 9 |
| 2020 | 11 | 13 |
| 2021 | 6 | 12 |
| 2022 | 11 | 14 |
| 2023 | 7 | 6 |
| 2024 | 9 | 10 |
| 2025 | 9 | 11 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Neural lattice device for characterization of neuron behavior2 Jun 2026US 12,644,085 B2International Business Machines Corporation
- Biomaterial detection sensor and method of manufacturing the same19 May 2026US 12,631,572 B2Samsung Electronics Co., Ltd.
- Method of manufacturing a microfluidic architecture5 May 2026US 12,617,129 B2Unhindr LTD
- Method for manufacturing a microfluidic device7 Apr 2026US 12,595,168 B2Imec Vzw
- Devices for micro gas chromatography and methods of making and uses thereof24 Mar 2026US 12,584,893 B2Virginia Tech Intellectual Properties, Inc.
- Method of manufacturing a microfluidic architecture27 Aug 2026US 2026/0249522 A1Unhlndr LTD
- MEMS with Reduced Acoustic Impedance6 Aug 2026US 2026/0230743 A1Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Microfluidic devices and methods of producing5 Feb 2026US 2026/0034315 A1Invox Belgium NV
- Isotachophoresis for Purification of Nucleic Acids29 Jan 2026US 2026/0028614 A1Purigen Biosystems, Inc.
- Micro-device structures with etch holes20 Nov 2025US 2025/0353732 A1X-Celeprint Limited
Most cited
By later US patents
- Microfabricated apertures for supporting bilayer lipid membranes144US 6,863,833 B1The Board of Trustees of the Leland Stanford Junior University · 2005
- Method for fabrication of high vertical aspect ratio thin film structures128US 5,660,680 AThe Regents of the University of California · 1997
- Multi-layer microfluidic devices96US 6,857,449 B1Caliper Life Sciences, Inc. · 2005
- Nanochannel arrays and their preparation and use for high throughput macromolecular analysis86US 7,670,770 B2The Trustees of Princeton University · 2010
- Silicon etching process for making microchannel plates84US 5,997,713 ANanoSciences Corporation · 1999