Push filter with floating key lock
US-2019388811-A1 · Dec 26, 2019 · US
Details of removable closures, lids, caps, filter heads
Details of removable closures, lids, caps, filter heads · 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 | B01D2201/301 |
| Official title | Details of removable closures, lids, caps, filter heads |
| Display label | Details of removable closures, lids, caps, filter heads |
| Total patents | 247 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 11 |
| 2017 | 10 |
| 2018 | 10 |
| 2019 | 27 |
| 2020 | 31 |
| 2021 | 30 |
| 2022 | 32 |
| 2023 | 28 |
| 2024 | 28 |
| 2025 | 23 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Smart wireless fuel system monitor integrated into a fuel filter assembly t-handle
US-2019358567-A1 · Nov 28, 2019 · US
Filter device and filtration device
US-2019321758-A1 · Oct 24, 2019 · US
Fuel filter with water separator
US-10413851-B2 · Sep 17, 2019 · US
Filter cap with insert
US-10399015-B2 · Sep 3, 2019 · US
Pool cleaner
US-10378228-B2 · Aug 13, 2019 · US
Fluid purification device
US-2019193006-A1 · Jun 27, 2019 · US
Filter housing that accepts both single open end o-ring and double open end filter elements
US-2019168141-A1 · Jun 6, 2019 · US
Fluid conditioning systems having caps with filter cartridge sealing and removal devices and/or locking devices
US-10307712-B2 · Jun 4, 2019 · US
Water purifying apparatus and filter structure
US-2019151784-A1 · May 23, 2019 · US
Push filter with floating key lock
US-2019134543-A1 · May 9, 2019 · US
A filter insert and a filter arrangement
US-2019111363-A1 · Apr 18, 2019 · US
Filter device for a beverage and/or ice dispenser unit of a household cooling appliance and household appliance having a filter device
US-10252198-B2 · Apr 9, 2019 · US
Fluid purification device
US-2019070535-A1 · Mar 7, 2019 · US
Purification device
US-2019060806-A1 · Feb 28, 2019 · US
Purification device
US-2019060807-A1 · Feb 28, 2019 · US
Push filter with floating key lock
US-10207211-B2 · Feb 19, 2019 · US
Torsional No Filter No Run System and Method
US-2019046905-A1 · Feb 14, 2019 · US
A filter insert and a filter arrangement
US-2019046904-A1 · Feb 14, 2019 · US
Water purifying apparatus and filter structure
US-2019039003-A1 · Feb 7, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2201/301?
- CPC B01D2201/301 is the Cooperative Patent Classification code for “Details of removable closures, lids, caps, filter heads.”
- How many patents are filed under CPC B01D2201/301 (Details of removable closures, lids, caps, filter heads)?
- Our database includes 247 publications tagged with this CPC code.
- Is patent activity under CPC B01D2201/301 growing?
- Publication counts under this code: 28 in 2024 vs 23 in 2025 (latest complete years).