Gas Exchange Composite Membranes and Methods of Use Thereof
US-2017361007-A1 · Dec 21, 2017 · US
Polydimethylsiloxane
Polydimethylsiloxane · 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 | B01D71/701 |
| Official title | {Polydimethylsiloxane} |
| Display label | Polydimethylsiloxane |
| Total patents | 282 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 27 |
| 2017 | 28 |
| 2018 | 35 |
| 2019 | 38 |
| 2020 | 20 |
| 2021 | 30 |
| 2022 | 11 |
| 2023 | 21 |
| 2024 | 22 |
| 2025 | 24 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas separation asymmetric membrane, gas separation module, gas separation device, and gas separation method
US-2017333836-A1 · Nov 23, 2017 · US
Droplet interfaces
US-9823235-B2 · Nov 21, 2017 · US
Grafted membranes and substrates having surfaces with switchable superoleophilicity and superoleophobicity and applications thereof
US-2017326504-A1 · Nov 16, 2017 · US
Gas separation membrane and gas separation membrane module
US-9808772-B2 · Nov 7, 2017 · US
Gas Separation Membranes with Intermixed Layers
US-2017296981-A1 · Oct 19, 2017 · US
Method of separating a gas using at least one membrane in contact with an organosilicon fluid
US-9731245-B2 · Aug 15, 2017 · US
Method Of Forming An Organosilicon Product Using A Membrane Contactor To React A Gas And Liquid
US-2017210849-A1 · Jul 27, 2017 · US
Grafted membranes and substrates having surfaces with switchable superoleophilicity and superoleophobicity and applications thereof
US-9708199-B2 · Jul 18, 2017 · US
Asymmetric articles with a porous substrate and a polymeric coating extending into the substrate and methods of making the same
US-2017144111-A1 · May 25, 2017 · US
1, 3-butadiene-separating material, and separation method using said separating material
US-9624144-B2 · Apr 18, 2017 · US
Membranes
US-9586183-B2 · Mar 7, 2017 · US
Process for preparing membranes
US-9586182-B2 · Mar 7, 2017 · US
Membranes for gas separation
US-2017056839-A1 · Mar 2, 2017 · US
Modified elastomer surface
US-2017002159-A1 · Jan 5, 2017 · US
Gas separation membrane and gas separation membrane module
US-2016354731-A1 · Dec 8, 2016 · US
Method of producing composite
US-2016339394-A1 · Nov 24, 2016 · US
Nanofiltration membranes and methods of use
US-2016288057-A1 · Oct 6, 2016 · US
Microfabricated artificial lung assist device, and methods of use and manufacture thereof
US-9457138-B2 · Oct 4, 2016 · US
Degassing membrane for dialysis
US-9452251-B2 · Sep 27, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D71/701?
- CPC B01D71/701 is the Cooperative Patent Classification code for “Polydimethylsiloxane.”
- How many patents are filed under CPC B01D71/701 (Polydimethylsiloxane)?
- Our database includes 282 publications tagged with this CPC code.
- Is patent activity under CPC B01D71/701 growing?
- Publication counts under this code: 22 in 2024 vs 24 in 2025 (latest complete years).