Reverse osmosis membrane and method of producing the same
US-2024307831-A1 · Sep 19, 2024 · US
Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08J2477/00 |
| Official title | Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers |
| Display label | Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers |
| Total patents | 303 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 15 |
| 2017 | 22 |
| 2018 | 32 |
| 2019 | 29 |
| 2020 | 32 |
| 2021 | 33 |
| 2022 | 31 |
| 2023 | 26 |
| 2024 | 28 |
| 2025 | 24 |
| 2026 | 6 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2024307831-A1 · Sep 19, 2024 · US
US-2017369663-A1 · Dec 28, 2017 · US
US-2017342269-A1 · Nov 30, 2017 · US
US-9828477-B2 · Nov 28, 2017 · US
US-9822228-B2 · Nov 21, 2017 · US
US-2017321019-A1 · Nov 9, 2017 · US
US-9810812-B2 · Nov 7, 2017 · US
US-9803073-B2 · Oct 31, 2017 · US
US-2017298200-A1 · Oct 19, 2017 · US
US-2017283556-A1 · Oct 5, 2017 · US
US-2017260346-A1 · Sep 14, 2017 · US
US-2017247517-A1 · Aug 31, 2017 · US
US-2017197464-A1 · Jul 13, 2017 · US
US-9676937-B2 · Jun 13, 2017 · US
US-9670348-B2 · Jun 6, 2017 · US
US-9650474-B2 · May 16, 2017 · US
US-2017121503-A1 · May 4, 2017 · US
US-2017068019-A1 · Mar 9, 2017 · US
US-2017001385-A1 · Jan 5, 2017 · US
US-9534110-B2 · Jan 3, 2017 · US
Answers are generated from the same data shown on this page.