B01D 71/26
Polyalkenes
B01D71/26 (Polyalkenes) appears on 608 US grants and 793 published applications in this corpus.
Search patents in B01D- Granted patents
- 608
- Published applications
- 793
- Assignees
- 387
- Inventors
- 1,845
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 11 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 9 | 0 |
| 1994 | 9 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 1 |
| 2002 | 9 | 8 |
| 2003 | 9 | 9 |
| 2004 | 7 | 3 |
| 2005 | 3 | 10 |
| 2006 | 3 | 14 |
| 2007 | 0 | 12 |
| 2008 | 9 | 12 |
| 2009 | 3 | 29 |
| 2010 | 15 | 36 |
| 2011 | 19 | 34 |
| 2012 | 16 | 29 |
| 2013 | 18 | 30 |
| 2014 | 24 | 31 |
| 2015 | 25 | 35 |
| 2016 | 18 | 36 |
| 2017 | 23 | 42 |
| 2018 | 26 | 33 |
| 2019 | 30 | 41 |
| 2020 | 32 | 50 |
| 2021 | 37 | 55 |
| 2022 | 31 | 44 |
| 2023 | 26 | 56 |
| 2024 | 28 | 60 |
| 2025 | 36 | 41 |
| 2026 | 29 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Point of use or point of dispense filter with multiple pleat packs15 Sep 2026US 12,734,488 B2Entegris, Inc.
- Cross-linkable polymer compositions and applications thereof8 Sep 2026US 12,729,261 B2Notark Corporation
- Surface-treated porous materials having filtration properties and methods of preparing them18 Aug 2026US 12,708,879 B2Aculon, Inc.
- Method for producing treatment liquid4 Aug 2026US 12,698,454 B2FUJIFILM Corporation
- Microporous membranes, underlayment, roofing, flashing, wrap, and methods for making and using the same14 Jul 2026US 12,678,741 B2Daramic, LLC
- Substrate for liquid filter and liquid filter8 Oct 2026US 2026/0307016 A1Teijin Limited
- Systems for catalytically removing per- and polyfluoroalkyl substances from a fluid and related methods1 Oct 2026US 2026/0296939 A1Arizona Board of Regents on behalf of Arizona State University
- Porous membrane, filter member, and member supply assembly24 Sep 2026US 2026/0284605 A1Nitto Denko Corporation
- Substrate for liquid filter and liquid filter17 Sep 2026US 2026/0273473 A1Teijin Limited
- Separation membrane, method for manufacturing same, membrane module for at least one of deaeration and aeration, and device for at least one of deaeration and aeration17 Sep 2026US 2026/0273477 A1Toray Industries, Inc.
Most cited
By later US patents
- Method of making polytetrafluoroethylene composite sheet203US 4,153,661 AMinnesota Mining and Manufacturing Company · 1979
- Dialysis system153US 4,094,775 ACalifornia Institute of Technology · 1978
- Oil, water and sweat repellent microporous membrane materials136US 5,260,360 AMinnesota Mining and Manufacturing Company · 1993
- Gas transfer process with hollow fiber membrane131US 4,268,279 AMitsubishi Rayon Co., Ltd. · 1981
- Puncture-resistant polyolefin membranes110US 6,096,213 A3M Innovative Properties Company · 2000