B01D 71/74
Natural macromolecular material or derivatives thereof
Official title: Natural macromolecular material or derivatives thereof (B01D71/08, B01D71/24 take precedence)
B01D71/74 (Natural macromolecular material or derivatives thereof) appears on 73 US grants and 87 published applications in this corpus.
Search patents in B01D- Granted patents
- 73
- Published applications
- 87
- Assignees
- 75
- Inventors
- 242
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 2 | 2 |
| 2005 | 0 | 0 |
| 2006 | 2 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 2 |
| 2014 | 2 | 2 |
| 2015 | 2 | 4 |
| 2016 | 0 | 4 |
| 2017 | 1 | 0 |
| 2018 | 3 | 0 |
| 2019 | 5 | 9 |
| 2020 | 5 | 4 |
| 2021 | 3 | 8 |
| 2022 | 4 | 14 |
| 2023 | 3 | 8 |
| 2024 | 7 | 10 |
| 2025 | 8 | 2 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Soy proteins for preparation of gels, fibers and films7 Jul 2026US 12,673,031 B2The Regents of the University of California
- Materials for reducing acids from liquid phases2 Jun 2026US 12,643,971 B2The Board of Trustees of The University of Alabama
- Fabrication of aquaporin-based biomimetic membrane12 May 2026US 12,623,190 B2Nanyang Technological University
- Synthesis of biomimetic cell wall structure30 Dec 2025US 12,508,316 B2The Penn State Research Foundation
- Filtration devices and methods thereof28 Oct 2025US 12,453,934 B2Ojai Energetics PBC
- Materials for reducing acids from liquid phases10 Sep 2026US 2026/0265434 A1The Board of Trustees of The University of Alabama
- Synthetic channels20 Aug 2026US 2026/0241346 A1Centre National de la Recherche Scientifique (CNRS)
- Synthesis of biomimetic cell wall structure25 Jun 2026US 2026/0174870 A1The Penn State Research Foundation
- Nano silk fibroin fibrous membrane with directional water transport and preparation method thereof7 May 2026US 2026/0124584 A1Haian Institute of High-Tech Research, Nanjing University
- Bituminous waterproofing membrane comprising a recycled bituminous binder, a reinforcement and a rejuvenator16 Apr 2026US 2026/0102743 A1S. A. Imperbel N.V.
Most cited
By later US patents
- Aqueous collagen composition138US 4,140,537 ACollagen Corporation · 1979
- Macroporous or microporous filtration membrane, method of preparation and use51US 5,993,661 AThe Research Foundation of State University of New York · 1999
- Method for fabricating supported bilayer-lipid membranes50US 6,541,071 B1Corning Incorporated · 2003
- Water-alcohol separating membrane and method for separation of water and alcohol by the use thereof35US 4,820,418 AAgency of Industrial Science and Technology · 1989
- Biomimetic water membrane comprising aquaporins used in the production of salinity power27US 8,123,948 B2Aquaporin A/S · 2012