Production process for graphene-based elastic heat spreader films
US-2021060876-A1 · Mar 4, 2021 · US
using pistons, accumulators or press rams
using pistons, accumulators or press rams · 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 | B29C48/475 |
| Official title | using pistons, accumulators or press rams |
| Display label | using pistons, accumulators or press rams |
| Total patents | 105 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 8 |
| 2017 | 11 |
| 2018 | 8 |
| 2019 | 7 |
| 2020 | 11 |
| 2021 | 15 |
| 2022 | 7 |
| 2023 | 6 |
| 2024 | 7 |
| 2025 | 8 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Molten-resin extrusion device and extrusion method as well as molten resin molding machine and molding method
US-10864669-B2 · Dec 15, 2020 · US
Method for producing spacers for a winding unit and voltage-resistant spacers for cast resin transformers
US-2020357567-A1 · Nov 12, 2020 · US
Ruffle maker
US-2020338800-A1 · Oct 29, 2020 · US
Method of manufacturing multiple fuel cell separator plate assemblies
US-10766173-B2 · Sep 8, 2020 · US
Container, folding container
US-2020270022-A1 · Aug 27, 2020 · US
Push-out apparatus
US-2020246826-A1 · Aug 6, 2020 · US
Toy system with extruder
US-2020197827-A1 · Jun 25, 2020 · US
Molding method and molding apparatus for resin molded article
US-10682804-B2 · Jun 16, 2020 · US
Blow-molding method
US-10661493-B2 · May 26, 2020 · US
Methods and apparatuses for additively manufacturing rubber
US-2020070420-A1 · Mar 5, 2020 · US
System and methods for injecting color during manufacture of bulked continuous carpet filament
US-2020023564-A1 · Jan 23, 2020 · US
Extrusion Die and Extrusion Method of Sheet Using the Same
US-2019375144-A1 · Dec 12, 2019 · US
Method and apparatus for consolidating a bulk molding compound
US-2019351599-A1 · Nov 21, 2019 · US
Articles containing PTFE having improved dimensional stability particularly over long lengths, methods for making such articles, and cable/wire assemblies containing such articles
US-10472432-B2 · Nov 12, 2019 · US
Methods and apparatuses for additively manufacturing rubber
US-10456978-B2 · Oct 29, 2019 · US
Die, manufacturing method therefor, and molded body manufacturing method
US-2019275728-A1 · Sep 12, 2019 · US
On-line melt tension systems and methods for measurement of melt strength of polymeric multilayer and monolayer structures
US-2019217522-A1 · Jul 18, 2019 · US
Encapsulation structure, production method thereof, glue-spreading device, and encapsulation glue
US-2019123302-A1 · Apr 25, 2019 · US
Bracket for running board and method of making the same
US-2018345868-A1 · Dec 6, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C48/475?
- CPC B29C48/475 is the Cooperative Patent Classification code for “using pistons, accumulators or press rams.”
- How many patents are filed under CPC B29C48/475 (using pistons, accumulators or press rams)?
- Our database includes 105 publications tagged with this CPC code.
- Is patent activity under CPC B29C48/475 growing?
- Publication counts under this code: 7 in 2024 vs 8 in 2025 (latest complete years).