Advanced visco-seals for single screw extruders
US-2026042250-A1 · Feb 12, 2026 · US
Sealing means
Sealing means · 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 | B29C48/254 |
| Official title | {Sealing means} |
| Display label | Sealing means |
| Total patents | 57 |
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 | 10 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 8 |
| 2019 | 4 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 8 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Extrusion device, method for manufacturing a hollow structure, and use of an extrusion device
US-2025017718-A1 · Jan 16, 2025 · US
System for Producing a Blown Film
US-2024351262-A1 · Oct 24, 2024 · US
Melt conveyor for an extrusion tool of an extrusion system, extrusion tool, extrusion system and method for operating an extrusion system of this type
US-2024227273-A9 · Jul 11, 2024 · US
System for producing a blown film
US-12023838-B2 · Jul 2, 2024 · US
Melt conveyor for an extrusion tool of an extrusion system, extrusion tool, extrusion system and method for operating an extrusion system of this type
US-2024131769-A1 · Apr 25, 2024 · US
Members for sealing, baffling, or reinforcing
US-2024116230-A1 · Apr 11, 2024 · US
Melt conductor for an extrusion tool of an extrusion system, extrusion tool, extrusion system and method for operating an extrusion system of this type
US-2024100761-A1 · Mar 28, 2024 · US
Melt conveyor for an extrusion tool of an extrusion system, extrusion tool, extrusion system and method for operating an extrusion system of this type
US-2024100762-A1 · Mar 28, 2024 · US
Members for sealing, baffling, or reinforcing
US-11883995-B2 · Jan 30, 2024 · US
System and method for preserving valve member travel in a multi-nozzle extruder
US-11613079-B2 · Mar 28, 2023 · US
Extruder system and method for extruding cord-reinforced tire components
US-2022339840-A1 · Oct 27, 2022 · US
Extruder system and method for extruding cord-reinforced tire components
US-11400631-B2 · Aug 2, 2022 · US
Method for overmolding at least one line
US-11230045-B2 · Jan 25, 2022 · US
Members for sealing, baffling, or reinforcing
US-2021283813-A1 · Sep 16, 2021 · US
Members for sealing, baffling, or reinforcing
US-11045989-B2 · Jun 29, 2021 · US
System and method for preserving valve member travel in a multi-nozzle extruder
US-2021178679-A1 · Jun 17, 2021 · US
System and method for preserving valve member travel in a multi-nozzle extruder
US-11000997-B2 · May 11, 2021 · US
Seal system for melted plastics
US-10994463-B2 · May 4, 2021 · US
Waterproof electronic device
US-10820094-B2 · Oct 27, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C48/254?
- CPC B29C48/254 is the Cooperative Patent Classification code for “Sealing means.”
- How many patents are filed under CPC B29C48/254 (Sealing means)?
- Our database includes 57 publications tagged with this CPC code.
- Is patent activity under CPC B29C48/254 growing?
- Publication counts under this code: 8 in 2024 vs 1 in 2025 (latest complete years).