Liquid Recovery Filter
US-2017368479-A1 · Dec 28, 2017 · US
Filters in combination with devices for the removal of gas, air purge systems
Filters in combination with devices for the removal of gas, air purge systems · 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 | B01D36/001 |
| Official title | {Filters in combination with devices for the removal of gas, air purge systems} |
| Display label | Filters in combination with devices for the removal of gas, air purge systems |
| Total patents | 374 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 21 |
| 2017 | 29 |
| 2018 | 32 |
| 2019 | 53 |
| 2020 | 49 |
| 2021 | 30 |
| 2022 | 41 |
| 2023 | 25 |
| 2024 | 31 |
| 2025 | 34 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Carafe filter with air lock prevention feature
US-9849407-B2 · Dec 26, 2017 · US
Filter for continuous filtration of a suspension under pressure
US-9833732-B2 · Dec 5, 2017 · US
Strainer device
US-2017296947-A1 · Oct 19, 2017 · US
Liquid recovery filter
US-9757666-B2 · Sep 12, 2017 · US
Filter element and filter device
US-9731224-B2 · Aug 15, 2017 · US
Filter element and filter system with siphon venting arrangement
US-2017203243-A1 · Jul 20, 2017 · US
Filter system, closure element, and filter element
US-2017197160-A1 · Jul 13, 2017 · US
Vented liquid filter vented through media
US-9700818-B2 · Jul 11, 2017 · US
Self-Venting Drain
US-2017189840-A1 · Jul 6, 2017 · US
Filter System Using a Self-Venting Drain
US-2017173507-A1 · Jun 22, 2017 · US
Crankcase filter assembly
US-2017120183-A1 · May 4, 2017 · US
Water Discharge System and Method
US-2017107957-A1 · Apr 20, 2017 · US
Flat-face valve for pulp rotary drum vacuum washer filter
US-2017087493-A1 · Mar 30, 2017 · US
Liquid purification element for purifying a liquid
US-2017087488-A1 · Mar 30, 2017 · US
Process liquid supply apparatus operating method, process liquid supply apparatus and non-transitory storage medium
US-9576829-B1 · Feb 21, 2017 · US
Process liquid supply apparatus operating method, process liquid supply apparatus and non-transitory storage medium
US-2017043287-A1 · Feb 16, 2017 · US
Flat-face valve for pulp rotary drum vacuum washer filter and method
US-9551430-B2 · Jan 24, 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
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D36/001?
- CPC B01D36/001 is the Cooperative Patent Classification code for “Filters in combination with devices for the removal of gas, air purge systems.”
- How many patents are filed under CPC B01D36/001 (Filters in combination with devices for the removal of gas, air purge systems)?
- Our database includes 374 publications tagged with this CPC code.
- Is patent activity under CPC B01D36/001 growing?
- Publication counts under this code: 31 in 2024 vs 34 in 2025 (latest complete years).