Recycling of acid-superbase conjugate ionic liquids by water removal in the lyocell spinning process
US-12509801-B2 · Dec 30, 2025 · US
Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like
Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like · Cooperative Patent Classification (CPC)
Textile and paper production, treatment, and products.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | D01F13/00 |
| Official title | Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like |
| Display label | Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2019 | 2 |
| 2020 | 5 |
| 2021 | 8 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 7 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polymers, articles, and chemicals made from densified textile derived syngas
US-2024239920-A1 · Jul 18, 2024 · US
System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn
US-12031234-B2 · Jul 9, 2024 · US
System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn
US-11976385-B2 · May 7, 2024 · US
System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn
US-11970788-B2 · Apr 30, 2024 · US
Polymers, articles, and chemicals made from densified textile derived syngas
US-11939406-B2 · Mar 26, 2024 · US
System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn
US-2024026571-A1 · Jan 25, 2024 · US
System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn
US-11866849-B2 · Jan 9, 2024 · US
Recycling of acid-superbase conjugate ionic liquids by water removal in the lyocell spinning process
US-2023203717-A1 · Jun 29, 2023 · US
Polymers, articles, and chemicals made from densified textile derived syngas
US-2022119987-A1 · Apr 21, 2022 · US
Method for separating unreacted monomer from mixture solution including unreacted monomer
US-11198953-B2 · Dec 14, 2021 · US
Method for collecting a nanoscale or submicron scale polymer fiber web
US-11142846-B2 · Oct 12, 2021 · US
System and method for measuring out a polymer and first solvent mixture, device, system and method for extracting a solvent from at least one polymer strand, system and method for mechanically pre-recovering at least one liquid from at least one polymer strand, and a continuous system and method for the production of at least one polymer strand
US-11124895-B2 · Sep 21, 2021 · US
Apparatus for continuous needleless electrospinning a nanoscale or submicron scale polymer fiber web onto a substrate
US-11085132-B2 · Aug 10, 2021 · US
Continuous wire drive system for needleless electrospinning apparatus
US-2021222328-A1 · Jul 22, 2021 · US
Method for separating unreacted monomer from mixture solution including unreacted monomer
US-2021140072-A1 · May 13, 2021 · US
Apparatus for continuous needleless electrospinning a nanoscale or submicron scale polymer fiber web onto a substrate
US-2021087711-A1 · Mar 25, 2021 · US
Continuous wire drive system for needleless electrospinning apparatus
US-10947643-B2 · Mar 16, 2021 · US
Continuous wire drive system for needleless electrospinning apparatus
US-2020378033-A1 · Dec 3, 2020 · US
System and method of dosing a polymer mixture with a first solvent, device, system and method of extracting solvent from at least one polymeric yarn, system and method of mechanical pre-recovery of at least one liquid in at least one polymeric yarn, and continuous system and method for producing at least one polymeric yarn
US-2020283929-A1 · Sep 10, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D01F13/00?
- CPC D01F13/00 is the Cooperative Patent Classification code for “Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like.”
- How many patents are filed under CPC D01F13/00 (Recovery of starting material, waste material or solvents during the manufacture of artificial filaments or the like)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC D01F13/00 growing?
- Publication counts under this code: 7 in 2024 vs 1 in 2025 (latest complete years).