Solder paste misprint cleaning
US-2017348785-A1 · Dec 7, 2017 · US
Heating appliances
Heating appliances · 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 | B23K3/04 |
| Official title | Heating appliances |
| Display label | Heating appliances |
| Total patents | 177 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 20 |
| 2016 | 23 |
| 2017 | 21 |
| 2018 | 16 |
| 2019 | 12 |
| 2020 | 13 |
| 2021 | 15 |
| 2022 | 5 |
| 2023 | 17 |
| 2024 | 13 |
| 2025 | 20 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fixture for use with fine wire laser soldering
US-9827635-B2 · Nov 28, 2017 · US
Solder fill into high aspect through holes
US-2017338152-A1 · Nov 23, 2017 · US
Metal wiring bonding structure and production method therefor
US-2017290099-A1 · Oct 5, 2017 · US
Solder fill into high aspect through holes
US-2017263498-A1 · Sep 14, 2017 · US
Nozzle for heating device, heating device, and nozzle for cooling device
US-9751146-B2 · Sep 5, 2017 · US
Thermal compression bonding process cooling manifold
US-9748199-B2 · Aug 29, 2017 · US
Bonding apparatus
US-9711483-B2 · Jul 18, 2017 · US
Wire splicing device, wire splicing method, and method for manufacturing splice structure
US-9685769-B2 · Jun 20, 2017 · US
Reflow oven and methods of treating surfaces of the reflow oven
US-9662731-B2 · May 30, 2017 · US
Generation of a Splice Between Superconductor Materials
US-2017125924-A1 · May 4, 2017 · US
Wire splicing device, wire splicing method, and method for manufacturing splice structure
US-2017117688-A1 · Apr 27, 2017 · US
Wire splicing device, wire splicing method, and method for manufacturing splice structure
US-2017117689-A1 · Apr 27, 2017 · US
Fixture for use with fine wire laser soldering
US-2017100803-A1 · Apr 13, 2017 · US
LED tube lamp
US-9618168-B1 · Apr 11, 2017 · US
Apparatus and method for attaching interconnector of solar cell panel
US-2017095871-A1 · Apr 6, 2017 · US
Led tube lamp
US-2017089530-A1 · Mar 30, 2017 · US
Gas-intake-port array structure and soldering apparatus
US-9511379-B2 · Dec 6, 2016 · US
Reflow oven liner, system and method
US-2016339486-A1 · Nov 24, 2016 · US
Gas-blowing-hole array structure and soldering apparatus
US-9485872-B2 · Nov 1, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B23K3/04?
- CPC B23K3/04 is the Cooperative Patent Classification code for “Heating appliances.”
- How many patents are filed under CPC B23K3/04 (Heating appliances)?
- Our database includes 177 publications tagged with this CPC code.
- Is patent activity under CPC B23K3/04 growing?
- Publication counts under this code: 13 in 2024 vs 20 in 2025 (latest complete years).