Universal scalable and cost-effective surface modifications
US-2019351375-A1 · Nov 21, 2019 · US
Graft polymers
Graft polymers · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D71/78 |
| Official title | Graft polymers |
| Display label | Graft polymers |
| Total patents | 128 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 9 |
| 2017 | 18 |
| 2018 | 11 |
| 2019 | 15 |
| 2020 | 15 |
| 2021 | 17 |
| 2022 | 11 |
| 2023 | 8 |
| 2024 | 6 |
| 2025 | 6 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Graft copolymer functionalized article
US-10471398-B2 · Nov 12, 2019 · US
Heat-Induced Grafting Of Nonwovens For High Capacity Ion Exchange Separation
US-2019284321-A1 · Sep 19, 2019 · US
Porous membrane and method for manufacturing porous membrane
US-2019247805-A1 · Aug 15, 2019 · US
Composite perfluorohydrocarbon membranes, their preparation and use
US-10376846-B2 · Aug 13, 2019 · US
Gas separation membrane containing heteromorphous shaped silica nanoparticles
US-2019184345-A1 · Jun 20, 2019 · US
Universal scalable and cost-effective surface modifications
US-10315169-B2 · Jun 11, 2019 · US
Grafted membranes and substrates having surfaces with switchable superoleophilicity and superoleophobicity and applications thereof
US-10307716-B2 · Jun 4, 2019 · US
Porous asymmetric polyphenylene ether membranes and associated separation modules and methods
US-10252221-B2 · Apr 9, 2019 · US
Porous asymmetric polyphenylene ether membranes and associated separation modules and methods
US-10252220-B2 · Apr 9, 2019 · US
Method for manufacturing gas separation membrane
US-2019083942-A1 · Mar 21, 2019 · US
Synthetic membranes and methods of use thereof
US-2019070567-A1 · Mar 7, 2019 · US
Composite membrane with support comprising poly(phenylene ether) and amphilphilic polymer; method of making; and separation module thereof
US-10207230-B2 · Feb 19, 2019 · US
Grafted Islands-In-The-Sea Nonwoven For High Capacity Ion Exchange Bioseparation
US-2019001281-A1 · Jan 3, 2019 · US
Pvp- and/or pvl-containing composite membranes and methods of use
US-2019001273-A1 · Jan 3, 2019 · US
Continuous process for cleaning process waste air obtained in the production of silicones
US-2018369747-A1 · Dec 27, 2018 · US
Crosslinked polymer membranes and methods of their production
US-2018318774-A1 · Nov 8, 2018 · US
Synthetic membranes and methods of use thereof
US-10118134-B2 · Nov 6, 2018 · US
Grafted polymer nanocomposite materials, systems, and methods
US-10112143-B2 · Oct 30, 2018 · US
Grafted ultra high molecular weight polyethylene microporous membranes
US-2018290109-A1 · Oct 11, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D71/78?
- CPC B01D71/78 is the Cooperative Patent Classification code for “Graft polymers.”
- How many patents are filed under CPC B01D71/78 (Graft polymers)?
- Our database includes 128 publications tagged with this CPC code.
- Is patent activity under CPC B01D71/78 growing?
- Publication counts under this code: 6 in 2024 vs 6 in 2025 (latest complete years).