Glass composite, casing, display device and terminal device
US-11858844-B2 · Jan 2, 2024 · US
Pre-treatment
Pre-treatment · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C03C2218/31 |
| Official title | Pre-treatment |
| Display label | Pre-treatment |
| Total patents | 322 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 26 |
| 2016 | 22 |
| 2017 | 30 |
| 2018 | 24 |
| 2019 | 22 |
| 2020 | 26 |
| 2021 | 35 |
| 2022 | 31 |
| 2023 | 27 |
| 2024 | 43 |
| 2025 | 29 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Antireflection film, and optical member and optical apparatus each using the antireflection film
US-2017315269-A1 · Nov 2, 2017 · US
Durable and Optically Transparent Superhydrophobic Surfaces
US-2017267576-A1 · Sep 21, 2017 · US
Methods for printing on glass
US-9724727-B2 · Aug 8, 2017 · US
Tempered and colorless antimicrobial soda lime glass and methods of making and using same
US-2017204005-A1 · Jul 20, 2017 · US
Microchip and film forming method for metal thin film of microchip
US-9696253-B2 · Jul 4, 2017 · US
Method of fabricating light extraction substrate for organic light emitting device
US-9688571-B2 · Jun 27, 2017 · US
Glass articles with nanoparticle regions
US-2017168224-A1 · Jun 15, 2017 · US
Nanoparticle coater
US-2017165703-A1 · Jun 15, 2017 · US
Microchip
US-2017151562-A1 · Jun 1, 2017 · US
Methods of forming polarized panes for variable transmission windows
US-9562388-B2 · Feb 7, 2017 · US
Mirror comprising a silvering-modifying layer
US-9535198-B2 · Jan 3, 2017 · US
Graphene-ceramic hybrid coating layer, and method for preparing the same
US-9527773-B2 · Dec 27, 2016 · US
Low temperature poly-silicon thin film preparation apparatus and method for preparing the same
US-9522844-B2 · Dec 20, 2016 · US
Method of forming an exterior mirror reflector sub-assembly with auxiliary reflector portion
US-9499102-B2 · Nov 22, 2016 · US
Method of making a mirror substrate for an interior rearview mirror assembly for a vehicle
US-9481303-B2 · Nov 1, 2016 · US
Novel compounds useful for the treatment of bacterial infectious diseases
US-2016297830-A1 · Oct 13, 2016 · US
Method for manufacturing magnetic recording medium
US-2016293199-A1 · Oct 6, 2016 · US
Glass with high frictive damage resistance
US-2016229740-A1 · Aug 11, 2016 · US
Method of forming an exterior mirror reflector sub-assembly with auxiliary reflector portion
US-2016229345-A1 · Aug 11, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03C2218/31?
- CPC C03C2218/31 is the Cooperative Patent Classification code for “Pre-treatment.”
- How many patents are filed under CPC C03C2218/31 (Pre-treatment)?
- Our database includes 322 publications tagged with this CPC code.
- Is patent activity under CPC C03C2218/31 growing?
- Publication counts under this code: 43 in 2024 vs 29 in 2025 (latest complete years).