Hollow Filter Element, Filter, and Housing Section of a Filter
US-2017361252-A1 · Dec 21, 2017 · US
with bag, cage, hose, tube, sleeve or like filtering elements
with bag, cage, hose, tube, sleeve or like filtering elements · 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 | B01D29/11 |
| Official title | with bag, cage, hose, tube, sleeve or like filtering elements |
| Display label | with bag, cage, hose, tube, sleeve or like filtering elements |
| Total patents | 354 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 25 |
| 2016 | 20 |
| 2017 | 26 |
| 2018 | 31 |
| 2019 | 38 |
| 2020 | 43 |
| 2021 | 35 |
| 2022 | 43 |
| 2023 | 27 |
| 2024 | 32 |
| 2025 | 29 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Spin-on filter for suction-side and pressure-side applications in filtration systems
US-2017304750-A1 · Oct 26, 2017 · US
Fuel inlet filter for fuel injectors
US-2017306913-A1 · Oct 26, 2017 · US
Filter Assembly
US-2017266594-A1 · Sep 21, 2017 · US
Filter element
US-9764263-B2 · Sep 19, 2017 · US
Bottle system and method for filtering or treating a beverage
US-9724629-B2 · Aug 8, 2017 · US
Fuel water separator having filter and sensor
US-9724628-B2 · Aug 8, 2017 · US
Filter element and filter system with siphon venting arrangement
US-2017203243-A1 · Jul 20, 2017 · US
Process for obtaining precipitated calcium carbonate
US-2017137299-A1 · May 18, 2017 · US
System and method for the treatment of liquid waste in zero gravity
US-9586843-B2 · Mar 7, 2017 · US
Liquid purification element
US-2017037762-A1 · Feb 9, 2017 · US
Polyarylene sulfide production method and polyarylene sulfide production apparatus
US-2017029570-A1 · Feb 2, 2017 · US
Bellows, Filter Element, and Method
US-2017028321-A1 · Feb 2, 2017 · US
Spin-on filter with external threads and methods
US-9555347-B2 · Jan 31, 2017 · US
Spin-on filter with external threads and methods
US-9545587-B2 · Jan 17, 2017 · US
Filter element having vent tube and filter assembly
US-9527016-B2 · Dec 27, 2016 · US
Filter element having cover portion and filter assembly
US-9527017-B2 · Dec 27, 2016 · US
Canister filter system with drain that cooperates with filter element
US-9511314-B2 · Dec 6, 2016 · US
Fan drive gear system manifold radial tube filters
US-2016273385-A1 · Sep 22, 2016 · US
Filter base system and filter assembly
US-9446334-B2 · Sep 20, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D29/11?
- CPC B01D29/11 is the Cooperative Patent Classification code for “with bag, cage, hose, tube, sleeve or like filtering elements.”
- How many patents are filed under CPC B01D29/11 (with bag, cage, hose, tube, sleeve or like filtering elements)?
- Our database includes 354 publications tagged with this CPC code.
- Is patent activity under CPC B01D29/11 growing?
- Publication counts under this code: 32 in 2024 vs 29 in 2025 (latest complete years).