Manufacturing a heat exchanger using a material buildup process
US-2018372416-A1 · Dec 27, 2018 · US
the conduits for one heat-exchange medium being formed by paired plates touching each other (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence)
the conduits for one heat-exchange medium being formed by paired plates touching each other (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence) · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F28D9/0031 |
| Official title | {the conduits for one heat-exchange medium being formed by paired plates touching each other (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence)} |
| Display label | the conduits for one heat-exchange medium being formed by paired plates touching each other (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence) |
| Total patents | 246 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 15 |
| 2017 | 17 |
| 2018 | 26 |
| 2019 | 38 |
| 2020 | 25 |
| 2021 | 31 |
| 2022 | 25 |
| 2023 | 22 |
| 2024 | 17 |
| 2025 | 12 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Exhaust gas cooler
US-2018238276-A1 · Aug 23, 2018 · US
Formed microchannel heat exchanger
US-2018231322-A1 · Aug 16, 2018 · US
Heat exchanger
US-2018224155-A1 · Aug 9, 2018 · US
Structural support element in heat exchangers
US-10006722-B2 · Jun 26, 2018 · US
Formed microchannel heat exchanger with multiple layers
US-10001325-B2 · Jun 19, 2018 · US
Heat exchanger for vehicle
US-2018164039-A1 · Jun 14, 2018 · US
Heat Exchanger and Method of Cooling a Flow of Heated Air
US-2018149433-A1 · May 31, 2018 · US
Stacked plate evaporator
US-9982570-B2 · May 29, 2018 · US
Connecting reinforcement for between the plates of a heat exchanger
US-9976816-B2 · May 22, 2018 · US
Refrigerant heat exchanger
US-2018128549-A1 · May 10, 2018 · US
Thermal exchange plate assembly for vehicle battery
US-2018131051-A1 · May 10, 2018 · US
Heat exchanger
US-2018094877-A1 · Apr 5, 2018 · US
Heat exchanger and hot water apparatus
US-2018087806-A1 · Mar 29, 2018 · US
Heat exchanger
US-9909812-B2 · Mar 6, 2018 · US
Methods and Devices for Heating or Cooling Viscous Materials
US-2018007941-A1 · Jan 11, 2018 · US
Curved cross-flow heat exchanger
US-9851159-B2 · Dec 26, 2017 · US
Efficient self cooling heat exchanger
US-9816764-B2 · Nov 14, 2017 · US
Constant vapor velocity condenser
US-2017321973-A1 · Nov 9, 2017 · US
Methods and devices for heating or cooling viscous materials
US-9803932-B2 · Oct 31, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28D9/0031?
- CPC F28D9/0031 is the Cooperative Patent Classification code for “the conduits for one heat-exchange medium being formed by paired plates touching each other (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence).”
- How many patents are filed under CPC F28D9/0031 (the conduits for one heat-exchange medium being formed by paired plates touching each other (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence))?
- Our database includes 246 publications tagged with this CPC code.
- Is patent activity under CPC F28D9/0031 growing?
- Publication counts under this code: 17 in 2024 vs 12 in 2025 (latest complete years).