D01F 6/68
From polyaminoacids or polypeptides
Official title: from polyaminoacids or polypeptides
D01F6/68 (From polyaminoacids or polypeptides) appears on 40 US grants and 55 published applications in this corpus.
Search patents in D01F- Granted patents
- 40
- Published applications
- 55
- Assignees
- 31
- Inventors
- 124
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 3 |
| 2013 | 2 | 5 |
| 2014 | 1 | 3 |
| 2015 | 4 | 1 |
| 2016 | 3 | 3 |
| 2017 | 1 | 3 |
| 2018 | 5 | 7 |
| 2019 | 2 | 6 |
| 2020 | 2 | 4 |
| 2021 | 3 | 3 |
| 2022 | 1 | 3 |
| 2023 | 2 | 3 |
| 2024 | 1 | 1 |
| 2025 | 4 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Biodegradable textile fibers with inherent color and properties18 Aug 2026US 12,709,640 B2The Trustees of Columbia University in the City of New York
- Methods and compositions for synthesizing improved silk fibers17 Mar 2026US 12,577,354 B2Bolt Threads, Inc.
- Recombinant hagfish proteins and fibers25 Feb 2025US 12,234,268 B2Utah State University
- Controlled drug release from electrospun fibers28 Jan 2025US 12,208,139 B2Rensselaer Polytechnic Institute
- Methods of generating highly-crystalline recombinant spider silk protein fibers28 Jan 2025US 12,209,331 B2Bolt Threads, Inc.
- Controlled drug release from electrospun fibers27 Nov 2025US 2025/0360216 A1Rensselaer Polytechnic Institute
- Microbial production of titin fibers with exceptional mechanical performance10 Jul 2025US 2025/0223327 A1Washington University
- Wet-spun lamin-based fibers24 Apr 2025US 2025/0129520 A1Sami Shamoon College of Engineering
- Controlled drug release from electrospun fibers11 Jan 2024US 2024/0009312 A1Rensselaer Polytechnic Institute
- Biodegradable textile fibers with inherent color and properties12 Oct 2023US 2023/0322902 A1The Trustees of Columbia University in the City of New York
Most cited
By later US patents
- Process for spinning polypeptide fibers52US 5,171,505 AE. I. Du Pont de Nemours and Company · 1992
- Process of making polypeptide fibers20US 7,014,807 B2E. I. DuPont de Nemours and Company · 2006
- Method of forming a fiber made of peptide nanostructures16US 8,568,637 B2Ramot at Tel-Aviv University Ltd. · 2013
- Polypeptide solution, artificial polypeptide fiber production method and polypeptide purification method using same15US 9,051,453 B2Spiber Inc. · 2015
- Artificial hair from poly amino acid urethane fiber12US 5,283,297 AAderans Co., Ltd. · 1994