B01D 2325/341
At least two polymers of same structure but different molecular weight
B01D2325/341 (At least two polymers of same structure but different molecular weight) appears on 44 US grants and 59 published applications in this corpus.
Search patents in B01D- Granted patents
- 44
- Published applications
- 59
- Assignees
- 27
- Inventors
- 123
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 6 |
| 2010 | 0 | 4 |
| 2011 | 2 | 2 |
| 2012 | 2 | 2 |
| 2013 | 1 | 3 |
| 2014 | 4 | 1 |
| 2015 | 2 | 2 |
| 2016 | 2 | 3 |
| 2017 | 2 | 2 |
| 2018 | 0 | 4 |
| 2019 | 1 | 2 |
| 2020 | 3 | 7 |
| 2021 | 4 | 9 |
| 2022 | 3 | 5 |
| 2023 | 2 | 3 |
| 2024 | 6 | 1 |
| 2025 | 4 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Substrate for composite membrane10 Mar 2026US 12,573,652 B2Teijin Limited
- Compositions and methods for improved calibration accuracy of creatinine/creatine sensors and uses thereof20 Jan 2026US 12,529,673 B2Instrumentation Laboratory Company
- Method to remove chemical contaminants30 Dec 2025US 12,509,363 B2The Procter & Gamble Company
- Polymer composition blend and membranes made therefrom2 Dec 2025US 12,486,387 B2Celanese International Corporation
- Microporous material and systems and methods for making the same24 Jun 2025US 12,338,338 B2
- Polymer Composition Blend and Membranes Made Therefrom22 Jan 2026US 2026/0022236 A1Celanese International Corporation
- Microporous material and systems and methods for making the same13 Feb 2025US 2025/0051535 A1
- Method of using nanofiltration and reverse osmosis to remove chemical contaminants23 May 2024US 2024/0166534 A1The Procter & Gamble Company
- Polymer Composition Blend and Membranes Made Therefrom28 Sep 2023US 2023/0303811 A1Celanese International Corporation
- Method of using nanofiltration and reverse osmosis to remove chemical contaminants6 Apr 2023US 2023/0109082 A1The Procter & Gamble Company
Most cited
By later US patents
- Systems for producing a plurality of different microporous phase inversion membrane each having any one of a plurality of different pore sizes from a single master dope batch56US 6,056,529 ACuno Incorporated · 2000
- Process of making microporous phase inversion membranes34US 6,267,916 B1Cuno Incorporated · 2001
- Polysulfone membrane for purifying blood23US 6,113,785 AAsahi Kasei Kogyo Kabushiki Kaisha · 2000
- Permselective membranes and methods for their production15US 6,355,730 B1Toray Industries, Inc. · 2002
- Preparation of high performance ultra filtration hollow fiber membrane10US 8,104,624 B2Aquatech International Corporation · 2012