Value chain return process for the recovery of phosphorous ester-based flame retardants from polyurethane rigid foams
US-2025223418-A1 · Jul 10, 2025 · US
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Subject matter not provided for in other groups of this subclass
Subject matter not provided for in other groups of this subclass · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08J99/00 |
| Official title | Subject matter not provided for in other groups of this subclass |
| Display label | Subject matter not provided for in other groups of this subclass |
| Total patents | 10 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 2 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Utilizing aTREF data with chemometric analysis for determining the types of polyethylene present in polymer blends and multilayer films
US-11802865-B2 · Oct 31, 2023 · US
Optical resin formed body manufacturing method, resin fiber manufacturing method, and resin fiber manufacturing apparatus
US-2023226737-A1 · Jul 20, 2023 · US
Utilizing atref data with chemometric analysis for determining the types of polyethylene present in polymer blends and multilayer films
US-2023204561-A1 · Jun 29, 2023 · US
Method for producing fluoropolyether group-containing compound
US-2022259377-A1 · Aug 18, 2022 · US
Process for extracting resin and rubber from guayule plants
US-10738135-B2 · Aug 11, 2020 · US
Process for extracting latex, resin and rubber from guayule plants
US-10654945-B2 · May 19, 2020 · US
Process for extracting latex, resin and rubber from guayule plants
US-2018371111-A1 · Dec 27, 2018 · US
Process for extracting resin and rubber from guayule plants
US-2018371112-A1 · Dec 27, 2018 · US
Methods and systems for recovering carbon fibers from objects
US-2017198416-A1 · Jul 13, 2017 · US