G01N 2021/0385
Diffusing membrane
Official title: {Diffusing membrane; Semipermeable membrane}
G01N2021/0385 (Diffusing membrane) appears on 45 US grants and 18 published applications in this corpus.
Search patents in G01N- Granted patents
- 45
- Published applications
- 18
- Assignees
- 37
- Inventors
- 88
- Latest grant
- 3 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 2 | 5 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Membrane permeation device and corresponding method3 Jun 2025US 12,320,737 B2University of Huddersfield
- Systems, devices, components and methods for analyzing body fluid samples15 Apr 2025US 12,276,596 B2
- Biological sample reaction box18 Apr 2023US 11,628,440 B2Leadway (Hk) Limited
- Apparatus for optical inspection of small volumes of liquid sample and cuvettes therefor2 Mar 2021US 10,935,490 B2Bd Kiestra B. V.
- Sensor cap for optochemical sensor5 Mar 2019US 10,222,331 B2Endress+Hauser Conducta GmbH+Co. KG
- Membrane permeation device and corresponding method26 Oct 2023US 2023/0341310 A1University of Huddersfield
- Method for characterising micro-organisms using transmission imaging8 Jun 2023US 2023/0175034 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Systems, Devices, Components and Methods for Analyzing Body Fluid Samples14 Oct 2021US 2021/0315496 A1Labinlight Lda
- Assay plates, separation sheets, filters, and sample deposition marks7 Oct 2021US 2021/0308666 A1Essenlix Corporation
- Sensor Element and Use of Same28 May 2020US 2020/0166450 A1PreSens—Precision Sensing GmbH
Most cited
By later US patents
- Fiber-optic physiological probes732US 4,925,268 AAbbott Laboratories · 1990
- Reservoir chemical sensors308US 5,116,759 AFiberChem Inc. · 1992
- Gas sample chamber68US 5,163,332 AGaztech International Corporation · 1992
- Disposable analytical device63US 4,865,813 A1989
- Optical measuring device using a spectral modulation sensor having an optically resonant structure62US 4,778,987 A1988