Method for Supporting the Implementation of a Process Change, Computer Program Product and System
US-2026084359-A1 · Mar 26, 2026 · US
Cleaning; Purging; Avoiding contamination
Cleaning; Purging; Avoiding contamination · 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 | B29C48/27 |
| Official title | Cleaning; Purging; Avoiding contamination |
| Display label | Cleaning; Purging; Avoiding contamination |
| Total patents | 45 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 4 |
| 2017 | 7 |
| 2018 | 5 |
| 2019 | 2 |
| 2020 | 8 |
| 2022 | 3 |
| 2023 | 5 |
| 2024 | 1 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Resin composition for cleaning molding machines
US-2026035558-A1 · Feb 5, 2026 · US
Screw machine with a rotatable filter in a deaeration port
US-12459185-B2 · Nov 4, 2025 · US
Polymer extrusion process
US-12318985-B2 · Jun 3, 2025 · US
Resin composition and purging agent using same, and molding machine purging method
US-2025059363-A1 · Feb 20, 2025 · US
Porous Particles and Purging Agent
US-2024076479-A1 · Mar 7, 2024 · US
Purging compound for resin processing machine
US-2023340380-A1 · Oct 26, 2023 · US
Screw machine
US-2023211538-A1 · Jul 6, 2023 · US
Tube manufacturing method, extrusion molding machine, mold for extrusion molding, winding device, and tube
US-2023202088-A1 · Jun 29, 2023 · US
Polymer Extrusion Process
US-2023202089-A1 · Jun 29, 2023 · US
Purging Agent and Method for Purging Molding Machine Using Same
US-2023193014-A1 · Jun 22, 2023 · US
Connecting device for connecting a screw machine to a gear mechanism, and method for cleaning such a connecting device
US-11447345-B2 · Sep 20, 2022 · US
Compositions including copolymers of vinylidene fluoride and tetrafluoroethylene and methods of using the same
US-11312802-B2 · Apr 26, 2022 · US
Method of manufacturing bulked continuous carpet filament
US-11279071-B2 · Mar 22, 2022 · US
Blown film line and method for operating a blown film line
US-10780622-B2 · Sep 22, 2020 · US
Overturning device for overturning molten material and purging method
US-10773441-B2 · Sep 15, 2020 · US
Purging agent
US-10737408-B2 · Aug 11, 2020 · US
Method of manufacturing bulked continuous carpet filament
US-2020240042-A1 · Jul 30, 2020 · US
Connecting Device For Connecting A Screw Machine To A Gear Mechanism, And Method For Cleaning Such A Connecting Device
US-2020156881-A1 · May 21, 2020 · US
Overturning device for overturning molten material and rinsing method
US-10625458-B2 · Apr 21, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C48/27?
- CPC B29C48/27 is the Cooperative Patent Classification code for “Cleaning; Purging; Avoiding contamination.”
- How many patents are filed under CPC B29C48/27 (Cleaning; Purging; Avoiding contamination)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC B29C48/27 growing?
- Publication counts under this code: 1 in 2024 vs 3 in 2025 (latest complete years).