Method and system for recovering fluid
US-11173434-B2 · Nov 16, 2021 · US
Filter bags
Filter bags · 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 | B01D29/27 |
| Official title | Filter bags |
| Display label | Filter bags |
| Total patents | 110 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 10 |
| 2017 | 12 |
| 2018 | 9 |
| 2019 | 12 |
| 2020 | 8 |
| 2021 | 17 |
| 2022 | 13 |
| 2023 | 5 |
| 2024 | 9 |
| 2025 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Container for separating microcarriers from cell culture fluids
US-2021238536-A1 · Aug 5, 2021 · US
Method and system for recovering fluid
US-2021197103-A1 · Jul 1, 2021 · US
Filter Systems for Separating Microcarriers from Cell Culture Solutions
US-2021179995-A1 · Jun 17, 2021 · US
Autonomous cleaning systems principally for swimming pools
US-10865581-B2 · Dec 15, 2020 · US
Conditioned syngas composition, method of making same and method of processing same to produce fuels and/or fischer-tropsch products
US-10800655-B2 · Oct 13, 2020 · US
Machine fluid system having filter protector for sock filter in manifold tube assembly
US-2020316500-A1 · Oct 8, 2020 · US
Suction filter and fuel supply device
US-10794343-B2 · Oct 6, 2020 · US
Microcarrier Filter Bag Assemblies and Methods of Use
US-2020282343-A1 · Sep 10, 2020 · US
Microcarrier filter bag assemblies and methods of use
US-10589197-B2 · Mar 17, 2020 · US
Suction filter and fuel supply device
US-10590894-B2 · Mar 17, 2020 · US
Autonomous cleaning systems principally for swimming pools
US-2020056391-A1 · Feb 20, 2020 · US
Suction filter and fuel supply device
US-2019271286-A1 · Sep 5, 2019 · US
Filter bag detection
US-2019240601-A1 · Aug 8, 2019 · US
Filter Systems for Separating Microcarriers from Cell Culture Solutions
US-2019241855-A1 · Aug 8, 2019 · US
Conditioned syngas composition, method of making same and method of processing same to produce fuels and/or fischer-tropsch products
US-2019210873-A1 · Jul 11, 2019 · US
Method of producing sulfur-depleted syngas
US-2019210874-A1 · Jul 11, 2019 · US
Fluid reservoir having inlet filtering
US-10328366-B2 · Jun 25, 2019 · US
Filter systems for separating microcarriers from cell culture solutions
US-10301585-B2 · May 28, 2019 · US
Pool cleaning robot having a filtering unit and a sensor
US-2019145119-A1 · May 16, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D29/27?
- CPC B01D29/27 is the Cooperative Patent Classification code for “Filter bags.”
- How many patents are filed under CPC B01D29/27 (Filter bags)?
- Our database includes 110 publications tagged with this CPC code.
- Is patent activity under CPC B01D29/27 growing?
- Publication counts under this code: 9 in 2024 vs 10 in 2025 (latest complete years).