Backwashing fluid discharge apparatus and filter unit
US-10071324-B2 · Sep 11, 2018 · US
by flushing, e.g. counter-current air-bumps
by flushing, e.g. counter-current air-bumps · 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 | B01D29/66 |
| Official title | by flushing, e.g. counter-current air-bumps |
| Display label | by flushing, e.g. counter-current air-bumps |
| Total patents | 191 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 16 |
| 2017 | 19 |
| 2018 | 18 |
| 2019 | 23 |
| 2020 | 18 |
| 2021 | 15 |
| 2022 | 14 |
| 2023 | 22 |
| 2024 | 9 |
| 2025 | 9 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for syngas clean-up of semi-volatile organic compounds with carbonyl sulfide removal
US-10011483-B2 · Jul 3, 2018 · US
Method for syngas clean-up of semi-volatile organic compounds with metal removal
US-10011482-B2 · Jul 3, 2018 · US
Polyarylene sulfide production method and polyarylene sulfide production apparatus
US-9908974-B2 · Mar 6, 2018 · US
System for syngas clean-up of semi-volatile organic compounds
US-9845240-B2 · Dec 19, 2017 · US
Water purifier capable of automatic flushing and cleaning
US-2017291125-A1 · Oct 12, 2017 · US
Device for separating a heterogeneous mixture of matter and method for cleaning a filter unit
US-9782703-B2 · Oct 10, 2017 · US
System for syngas clean-up
US-9783417-B2 · Oct 10, 2017 · US
System and method for filtration of liquids
US-9782704-B2 · Oct 10, 2017 · US
Filtering Element, Filtering Equipment And Water Circulation Cleaning System
US-2017266595-A1 · Sep 21, 2017 · US
Subsea fluid injection system
US-2017267545-A1 · Sep 21, 2017 · US
Filter Assembly
US-2017266594-A1 · Sep 21, 2017 · US
Locally Powered Water Distillation System
US-2017210637-A1 · Jul 27, 2017 · US
Water filter apparatus and method of filtering fine particles from water
US-2017203245-A1 · Jul 20, 2017 · US
Filter method for filtering a fluid and filtering device for filtering a fluid
US-2017182439-A1 · Jun 29, 2017 · US
Method for syngas clean-up of semi-volatile organic compounds with metal removal
US-2017166446-A1 · Jun 15, 2017 · US
Method for syngas clean-up of semi-volatile organic compounds with solids removal
US-2017152139-A1 · Jun 1, 2017 · US
Method for syngas clean-up of semi-volatile organic compounds with carbonyl sulfide removal
US-2017152140-A1 · Jun 1, 2017 · US
Locally powered water distillation system
US-9617167-B2 · Apr 11, 2017 · US
Method for syngas clean-up of semi-volatile organic compounds
US-9580315-B2 · Feb 28, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D29/66?
- CPC B01D29/66 is the Cooperative Patent Classification code for “by flushing, e.g. counter-current air-bumps.”
- How many patents are filed under CPC B01D29/66 (by flushing, e.g. counter-current air-bumps)?
- Our database includes 191 publications tagged with this CPC code.
- Is patent activity under CPC B01D29/66 growing?
- Publication counts under this code: 9 in 2024 vs 9 in 2025 (latest complete years).