B01D 65/102
Detection of leaks in membranes
Official title: {Detection of leaks in membranes}
B01D65/102 (Detection of leaks in membranes) appears on 207 US grants and 178 published applications in this corpus.
Search patents in B01D- Granted patents
- 207
- Published applications
- 178
- Assignees
- 131
- Inventors
- 510
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 15 | 0 |
| 1998 | 15 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 0 |
| 2002 | 2 | 3 |
| 2003 | 4 | 9 |
| 2004 | 6 | 11 |
| 2005 | 6 | 3 |
| 2006 | 4 | 7 |
| 2007 | 1 | 8 |
| 2008 | 3 | 5 |
| 2009 | 6 | 7 |
| 2010 | 4 | 10 |
| 2011 | 5 | 14 |
| 2012 | 5 | 6 |
| 2013 | 5 | 11 |
| 2014 | 5 | 6 |
| 2015 | 7 | 8 |
| 2016 | 5 | 4 |
| 2017 | 4 | 4 |
| 2018 | 5 | 5 |
| 2019 | 5 | 5 |
| 2020 | 4 | 6 |
| 2021 | 4 | 7 |
| 2022 | 3 | 7 |
| 2023 | 7 | 15 |
| 2024 | 7 | 10 |
| 2025 | 8 | 4 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid filtration system with single use filter and integrated integrity test device and method of using same2 Jun 2026US 12,643,062 B2Cytiva US LLC
- Evaluating the integrity of a forward osmosis membrane using transmembrane pressure2 Jun 2026US 12,643,073 B2Gambro Lundia AB
- Process for testing filters12 May 2026US 12,623,189 B2Gambro Lundia AB
- Method and system for testing the integrity of filters24 Mar 2026US 12,584,843 B2Sartorius Stedim Biotech GmbH
- Secondary statistical cutoff methodology for gas-liquid diffusion integrity testing17 Feb 2026US 12,551,852 B2EMD Millipore Corporation
- Monitoring device28 May 2026US 2026/0145139 A1Kubota Corporation
- Adaptive 3d-printed reverse osmosis membrane manufacturing system12 Mar 2026US 2026/0070019 A1International Business Machines Corporation
- Method for predicting a maintenance operation and recommending maintenance for water treatment equipment1 Jan 2026US 2026/0001042 A1
- Separation membrane system and temperature increase method for a separation membrane9 Oct 2025US 2025/0312748 A1NGK Insulators, Ltd.
- Method and an apparatus for evaluating a condition of a water purification system11 Sep 2025US 2025/0282648 A1Baxter Healthcare S. A.
Most cited
By later US patents
- Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof490US 5,591,344 AAksys, Ltd. · 1997
- Asymmetric membranes315US 4,629,563 ABrunswick Corporation · 1986
- Process for preparing hydrophilic polyamide membrane filter media and product277US 4,340,479 APall Corporation · 1982
- Hemodialysis machine with automatic priming by induced pressure pulses251US 5,863,421 AAksys, Ltd. · 1999
- Method of rinsing back blood to hemodialysis patient243US 5,690,831 AAksys, Ltd. · 1997