B01D 2273/18
Testing of filters, filter elements, sealings
B01D2273/18 (Testing of filters, filter elements, sealings) appears on 185 US grants and 183 published applications in this corpus.
Search patents in B01D- Granted patents
- 185
- Published applications
- 183
- Assignees
- 101
- Inventors
- 354
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 1 |
| 2003 | 1 | 3 |
| 2004 | 1 | 3 |
| 2005 | 2 | 5 |
| 2006 | 5 | 9 |
| 2007 | 7 | 16 |
| 2008 | 5 | 6 |
| 2009 | 7 | 12 |
| 2010 | 12 | 6 |
| 2011 | 7 | 7 |
| 2012 | 7 | 7 |
| 2013 | 6 | 4 |
| 2014 | 3 | 8 |
| 2015 | 4 | 2 |
| 2016 | 7 | 7 |
| 2017 | 1 | 11 |
| 2018 | 8 | 10 |
| 2019 | 9 | 19 |
| 2020 | 16 | 13 |
| 2021 | 16 | 12 |
| 2022 | 9 | 5 |
| 2023 | 8 | 5 |
| 2024 | 1 | 9 |
| 2025 | 4 | 2 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter unit29 Sep 2026US 12,746,493 B2Samsung Biologics Co., Ltd.
- Scanning device for an air filter23 Jun 2026US 12,663,343 B2Camfil AB
- Method and system for testing the integrity of filters24 Mar 2026US 12,584,843 B2Sartorius Stedim Biotech GmbH
- Method and electronic device for detecting contamination of filter10 Mar 2026US 12,569,795 B2Samsung Electronics Co., Ltd.
- Quantitative disorder analysis and particle removal efficiency of fiber-based filter media9 Dec 2025US 12,491,457 B2
- Filter and method for manufacturing same10 Sep 2026US 2026/0263982 A1NGK Insulators, Ltd.
- Cleanroom certification and hepa filter scanning3 Apr 2025US 2025/0110011 A1CertAir LLC
- Filter-drying device and method for filter-drying by means of such a filter-drying device27 Mar 2025US 2025/0102225 A1Vetter Pharma-Fertigung GmbH & Co. KG
- Method and system for testing the integrity of filters26 Sep 2024US 2024/0319064 A1Sartorius Stedim Biotech GmbH
- Device for the sequential testing of filters and their use11 Jul 2024US 2024/0230504 A9Topas GmbH Technologie-Orientierte Partikel-, Analysen- Und Sensortechnik
Most cited
By later US patents
- Device and method for monitoring the integrity of filtering installations289US 7,048,775 B2Sartorius AG · 2006
- Method for producing monodisperse aerosols119US 4,963,289 AThe United States of America as represented by the United States Department of Energy · 1990
- Particulate trap for diesel engine114US 5,908,480 ASumitomo Electric Industries, Ltd. · 1999
- Method and apparatus for the leak testing of filters91US 4,324,568 AFlanders Filters, Inc. · 1982
- Predicting logarithmic reduction values72US 6,202,475 B1USF Filtration and Separations Group, Inc. · 2001