B01D 2259/4533
For medical purposes
Official title: for medical purposes
B01D2259/4533 (For medical purposes) appears on 591 US grants and 662 published applications in this corpus.
Search patents in B01D- Granted patents
- 591
- Published applications
- 662
- Assignees
- 333
- Inventors
- 1,074
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 16 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 2 |
| 2002 | 13 | 12 |
| 2003 | 14 | 12 |
| 2004 | 13 | 11 |
| 2005 | 6 | 23 |
| 2006 | 8 | 21 |
| 2007 | 12 | 19 |
| 2008 | 18 | 28 |
| 2009 | 12 | 27 |
| 2010 | 23 | 21 |
| 2011 | 20 | 26 |
| 2012 | 19 | 33 |
| 2013 | 30 | 27 |
| 2014 | 19 | 28 |
| 2015 | 23 | 39 |
| 2016 | 25 | 28 |
| 2017 | 24 | 25 |
| 2018 | 34 | 21 |
| 2019 | 20 | 29 |
| 2020 | 20 | 36 |
| 2021 | 27 | 46 |
| 2022 | 30 | 38 |
| 2023 | 23 | 47 |
| 2024 | 20 | 19 |
| 2025 | 23 | 22 |
| 2026 | 10 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Absorption arrangement with a CO2 absorber and a water trap and process for filtering out CO218 Aug 2026US 12,708,734 B2Drägerwerk AG & Co. KGaA
- Compact portable oxygen concentrator18 Aug 2026US 12,710,121 B2Inogen, Inc.
- Taking up system and process with a filter unit for the receiving of gas from a medical apparatus21 Jul 2026US 12,685,836 B2Drägerwerk AG & Co. KGaA
- Household oxygen generator19 May 2026US 12,629,628 B2Shenzhen Harveymed Technology Co., LTD.
- Sieve module14 Apr 2026US 12,599,741 B2Oxus America, Inc.
- Ethylene oxide abatement systems1 Oct 2026US 2026/0295522 A1Boston Scientific Scimed, Inc.
- Ethylene oxide abatement systems1 Oct 2026US 2026/0295523 A1Boston Scientific Scimed, Inc.
- Ethylene oxide abatement systems1 Oct 2026US 2026/0295524 A1Boston Scientific Scimed, Inc.
- Exhaled breath capture modules and substrate-based probes for monitoring proteolysis activity3 Sep 2026US 2026/0259181 A1Zeteo Tech, Inc.
- Device and method of producing hypoxic/hyperoxic/normoxic gas mixtures13 Aug 2026US 2026/0232943 A1Z+ Health Srl
Most cited
By later US patents
- Portable oxygen concentration system and method of using the same310US 6,651,658 B1SeQual Technologies, Inc. · 2003
- Smoke plume evacuation filtration system295US 6,585,791 B12003
- Portable oxygen concentration system and method of using the same223US 6,691,702 B2SeQual Technologies, Inc. · 2004
- Rapid cycle pressure swing adsorption oxygen concentration method and apparatus193US 5,827,358 AImpact MST, Incorporation · 1998
- High frequency pressure swing adsorption186US 6,176,897 B1Questor Industries Inc. · 2001