Method for manufacturing optical film
US-2019202005-A1 · Jul 4, 2019 · US
characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio] · 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 | B29C48/625 |
| Official title | characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio] |
| Display label | characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio] |
| Total patents | 155 |
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 | 12 |
| 2017 | 15 |
| 2018 | 10 |
| 2019 | 15 |
| 2020 | 14 |
| 2021 | 14 |
| 2022 | 15 |
| 2023 | 13 |
| 2024 | 9 |
| 2025 | 17 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compact camera module
US-10280282-B2 · May 7, 2019 · US
Extrusion apparatus and methods
US-2018354181-A1 · Dec 13, 2018 · US
Composite material having a very low content of carbon-based nanofillers, process for the preparation thereof and uses thereof
US-10125243-B2 · Nov 13, 2018 · US
Extrusion process for polyethylene polymers
US-10124527-B2 · Nov 13, 2018 · US
Infrared absorbing, heat retaining film
US-2018310490-A1 · Nov 1, 2018 · US
Resin composition, multilayer sheet, packaging material and container
US-10093795-B2 · Oct 9, 2018 · US
Polymerization coupled compounding process
US-10081712-B2 · Sep 25, 2018 · US
Polymerization coupled compounding process
US-10077341-B2 · Sep 18, 2018 · US
Polyolefin microporous membrane and production method thereof
US-10079378-B2 · Sep 18, 2018 · US
Resin composition, resin formed product and multilayer structure
US-9994698-B2 · Jun 12, 2018 · US
Screw to be used in an extruder and extruder
US-2018099447-A1 · Apr 12, 2018 · US
Process for producing tyres
US-2017361555-A1 · Dec 21, 2017 · US
Melt processed antimicrobial composition
US-9832993-B2 · Dec 5, 2017 · US
Devices, Systems, and Processes for Processing Polymers
US-2017305058-A1 · Oct 26, 2017 · US
Method and device of manufacturing fiber-reinforced resin material
US-2017266846-A1 · Sep 21, 2017 · US
Transparent thermoplastic resin pellet manufacturing method
US-9751990-B2 · Sep 5, 2017 · US
Screw for extruder, screw element, extruder, and extrusion method
US-2017225379-A1 · Aug 10, 2017 · US
Discontinuous-fiber composites and methods of making the same
US-2017182700-A1 · Jun 29, 2017 · US
Multilayer Films and Methods of Making the Same
US-2017136746-A1 · May 18, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C48/625?
- CPC B29C48/625 is the Cooperative Patent Classification code for “characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio].”
- How many patents are filed under CPC B29C48/625 (characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio])?
- Our database includes 155 publications tagged with this CPC code.
- Is patent activity under CPC B29C48/625 growing?
- Publication counts under this code: 9 in 2024 vs 17 in 2025 (latest complete years).