B01D 2323/21
Fillers
B01D2323/21 (Fillers) appears on 80 US grants and 109 published applications in this corpus.
Search patents in B01D- Granted patents
- 80
- Published applications
- 109
- Assignees
- 98
- Inventors
- 329
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 2 |
| 2004 | 0 | 3 |
| 2005 | 2 | 1 |
| 2006 | 3 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 6 |
| 2010 | 3 | 1 |
| 2011 | 3 | 4 |
| 2012 | 0 | 4 |
| 2013 | 1 | 3 |
| 2014 | 0 | 4 |
| 2015 | 4 | 6 |
| 2016 | 3 | 6 |
| 2017 | 3 | 5 |
| 2018 | 3 | 5 |
| 2019 | 4 | 6 |
| 2020 | 3 | 12 |
| 2021 | 5 | 6 |
| 2022 | 5 | 7 |
| 2023 | 5 | 7 |
| 2024 | 5 | 6 |
| 2025 | 6 | 3 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Flat sheet membrane filtration module with cylindrical housing28 Jul 2026US 12,691,416 B2Thetis Environmental Inc.
- Microporous membranes, underlayment, roofing, flashing, wrap, and methods for making and using the same14 Jul 2026US 12,678,741 B2Daramic, LLC
- Membrane comprising a blend of polyarylethersulfone and polyaryletherketone and method for manufacturing thereof19 May 2026US 12,630,706 B2Syensqo Specialty Polymers USA, LLC
- Tunable graphene-based membranes and method of making the same5 May 2026US 12,616,944 B2Ora Graphene Audio Inc.
- Method for separating an oil-water emulsion16 Dec 2025US 12,496,556 B2King Fahd University of Petroleum and Minerals
- Microporous membrane, and preparation method therefor and application thereof6 Aug 2026US 2026/0229711 A1Shenzhen Senior Technology Material Co., Ltd.
- Polymer composite thin film, gas separation body provided with polymer composite thin film, gas separation device provided with polymer composite thin film, and manufacturing method for polymer composite thin film30 Jul 2026US 2026/0216663 A1NanoMembrane Technologies, Inc.
- Mechanically enhanced porous polyolefin composites in biaxial direction using fillers with high aspect ratio18 Jun 2026US 2026/0167787 A1Atera Water Pte Ltd
- Processes for preparing asymmetric hollow fiber membranes, asymmetric hollow fiber membranes and use of asymmetric hollow fiber membranes21 May 2026US 2026/0138094 A1Pam Membranas Seletivas Ltda
- Pervaporation membrane22 Jan 2026US 2026/0021455 A1Nitto Denko Corporation
Most cited
By later US patents
- Continuous open-cell polymeric foams containing living cells101US 5,677,355 ASmith & Nephew, Inc. · 1997
- Microporous polymeric films and process for their manufacture99US 4,698,372 AE. I. Du Pont de Nemours and Company · 1987
- Mixed matrix membranes incorporating microporous polymers as fillers98US 7,410,525 B1Uop LLC · 2008
- Microporous polymeric foams and microtextured surfaces62US 5,898,040 APoly-Med, Inc. · 1999
- Microporous polymeric foams and microtextured surfaces62US 5,969,020 APoly-Med, Inc. · 1999