D01F
Chemical features in the manufacture of artificial filaments, threads, fibres, bristles or
Official title: Chemical features in the manufacture of artificial filaments, threads, fibres, bristles or ribbons; apparatus specially adapted for the manufacture of carbon filaments
D01F (Chemical features in the manufacture of artificial filaments, threads, fibres, bristles or) appears on 11,296 US grants and 11,178 published applications in this corpus.
Search patents in D01F- Granted patents
- 11,296
- Published applications
- 11,178
- Assignees
- 3,804
- Inventors
- 24,148
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 142 | 0 |
| 1977 | 143 | 0 |
| 1978 | 150 | 0 |
| 1979 | 76 | 0 |
| 1980 | 106 | 0 |
| 1981 | 130 | 0 |
| 1982 | 106 | 0 |
| 1983 | 115 | 0 |
| 1984 | 124 | 0 |
| 1985 | 151 | 0 |
| 1986 | 114 | 0 |
| 1987 | 112 | 0 |
| 1988 | 122 | 0 |
| 1989 | 196 | 0 |
| 1990 | 182 | 0 |
| 1991 | 204 | 0 |
| 1992 | 225 | 0 |
| 1993 | 211 | 0 |
| 1994 | 220 | 0 |
| 1995 | 217 | 0 |
| 1996 | 245 | 0 |
| 1997 | 266 | 0 |
| 1998 | 242 | 0 |
| 1999 | 281 | 0 |
| 2000 | 233 | 0 |
| 2001 | 259 | 89 |
| 2002 | 217 | 271 |
| 2003 | 224 | 418 |
| 2004 | 275 | 391 |
| 2005 | 192 | 377 |
| 2006 | 218 | 362 |
| 2007 | 147 | 313 |
| 2008 | 137 | 345 |
| 2009 | 149 | 441 |
| 2010 | 240 | 482 |
| 2011 | 235 | 421 |
| 2012 | 229 | 369 |
| 2013 | 230 | 451 |
| 2014 | 229 | 429 |
| 2015 | 283 | 509 |
| 2016 | 288 | 459 |
| 2017 | 310 | 507 |
| 2018 | 325 | 506 |
| 2019 | 360 | 555 |
| 2020 | 360 | 632 |
| 2021 | 387 | 614 |
| 2022 | 331 | 545 |
| 2023 | 354 | 527 |
| 2024 | 441 | 500 |
| 2025 | 335 | 403 |
| 2026 | 228 | 262 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- D01F 6/00Monocomponent artificial filaments or the like of synthetic polymers5,783
- D01F 9/00Artificial filaments or the like of other substances2,629
- D01F 1/00General methods for the manufacture of artificial filaments or the like2,501
- D01F 8/00Conjugated, i.e. bi- or multicomponent, artificial filaments or the like1,594
- D01F 11/00Chemical after-treatment of artificial filaments or the like during manufacture957
- D01F 2/00Monocomponent artificial filaments or the like of cellulose or cellulose derivatives945
- D01F 4/00Monocomponent artificial filaments or the like of proteins274
- D01F 13/00Recovery of starting material, waste material or solvents during the manufacture of124
Recent patents
- Hollow fiber membrane material for high-humidification hydrogen fuel cell humidifier and preparation method and application thereof6 Oct 2026US 12,753,530 B2University of Electronic Science and Technology of China
- Polytetrafluoroethylene porous fiber and manufacturing and modifying process thereof6 Oct 2026US 12,753,532 B2Shandong University
- Color-changing antibacterial nanofiber29 Sep 2026US 12,746,214 B2University of Manitoba
- Nanocomposite fibers with a dramatic reduction in human plasma coagulation time29 Sep 2026US 12,746,304 B2Rensselaer Polytechnic Institute
- Method for preparing ultra-fine and uniform acrylamide-based polymer hydrogel filament and use thereof29 Sep 2026US 12,747,517 B2Beijing Taijieweiye Technology Co., Ltd
- Multifunctional filter materials8 Oct 2026US 2026/0305741 A1Khalifa University of Science and Technology
- Elastomeric laminate(s) for absorbent article donning8 Oct 2026US 2026/0306309 A1The Procter & Gamble Company
- Non-woven of spunbonded thermoplastic filaments having improved weldability properties and method for manufacturing such a non-woven8 Oct 2026US 2026/0306698 A1Dounor SAS
- High-temperature-resistant wear-resistant brush material and preparation method thereof8 Oct 2026US 2026/0308811 A1
- Roll-to-roll processing of hierarchically porous acrylic fibers through guided spinodal decomposition8 Oct 2026US 2026/0308812 A1
Most cited
By later US patents
- Drug releasing biodegradable fiber implant1,662US 6,596,296 B1Board of Regents, The University of Texas System · 2003
- Controlling the dissolution of dissolvable polymer components in plural component fibers1,447US 6,861,142 B1Hills, Inc. · 2005
- Hydrophilic polypropylene fibers having antimicrobial activity1,367US 6,762,339 B13M Innovative Properties Company · 2004
- Implantable fibers and medical articles1,319US 6,162,537 ASolutia Inc. · 2000
- Vascular closure device1,319US 8,790,684 B2Cordis Corporation · 2014