Additive manufacturing methods using aluminum-rare earth alloys and products made using such methods
US-2018080103-A1 · Mar 22, 2018 · US
by electric induction
by electric induction · 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 | C21D1/10 |
| Official title | by electric induction |
| Display label | by electric induction |
| Total patents | 222 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 23 |
| 2017 | 15 |
| 2018 | 25 |
| 2019 | 35 |
| 2020 | 22 |
| 2021 | 13 |
| 2022 | 19 |
| 2023 | 18 |
| 2024 | 11 |
| 2025 | 18 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High temperature nitriding of titanium parts
US-9790583-B2 · Oct 17, 2017 · US
Steel for surface hardening for machine structural use and part for machine structural use
US-9777343-B2 · Oct 3, 2017 · US
Heat treatment method for cam piece
US-2017273147-A1 · Sep 21, 2017 · US
Cr-containing austenitic alloy and method for producing the same
US-9695486-B2 · Jul 4, 2017 · US
Induction heating apparatus, carriers, and methods for heat treating parts
US-9683274-B2 · Jun 20, 2017 · US
All-Steel Fitting
US-2017145600-A1 · May 25, 2017 · US
Heating apparatus and heating method
US-2017150553-A1 · May 25, 2017 · US
Induction hardening system and method
US-9631252-B2 · Apr 25, 2017 · US
Method & metal component
US-2017081738-A1 · Mar 23, 2017 · US
Partially hardened rotary tool and corresponding production method
US-2017072477-A1 · Mar 16, 2017 · US
Stabilizer bar and process of producing a stabilizer bar
US-2017066299-A1 · Mar 9, 2017 · US
Steel for induction hardening
US-2017067140-A1 · Mar 9, 2017 · US
Induction Hardening Apparatus, Induction Hardening Method, Induction Heating Coil, Heat Treatment Apparatus, and Heat Treatment Method
US-2017067130-A1 · Mar 9, 2017 · US
Workpiece for induction hardening
US-2017029910-A1 · Feb 2, 2017 · US
Induction hardening apparatus, induction hardening method, induction heating coil, heat treatment apparatus, and heat treatment method
US-9534267-B2 · Jan 3, 2017 · US
Inductor for an induction hardening system
US-2016376678-A1 · Dec 29, 2016 · US
Induction heating apparatus, carriers, and methods for heat treating parts
US-2016362757-A1 · Dec 15, 2016 · US
Method for producing a bearing ring
US-9487843-B2 · Nov 8, 2016 · US
High frequency heating coil
US-9485812-B2 · Nov 1, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D1/10?
- CPC C21D1/10 is the Cooperative Patent Classification code for “by electric induction.”
- How many patents are filed under CPC C21D1/10 (by electric induction)?
- Our database includes 222 publications tagged with this CPC code.
- Is patent activity under CPC C21D1/10 growing?
- Publication counts under this code: 11 in 2024 vs 18 in 2025 (latest complete years).