Shell-and-tube heat exchanger with distributed inlet-outlets
US-2017328642-A1 · Nov 16, 2017 · US
by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels
by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels · 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 | F28F9/028 |
| Official title | {by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels} |
| Display label | by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels |
| Total patents | 303 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 19 |
| 2017 | 22 |
| 2018 | 37 |
| 2019 | 28 |
| 2020 | 23 |
| 2021 | 31 |
| 2022 | 32 |
| 2023 | 29 |
| 2024 | 21 |
| 2025 | 34 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Refrigerant diverter
US-2017299284-A1 · Oct 19, 2017 · US
Heat exchanger and air conditioning apparatus
US-2017292741-A1 · Oct 12, 2017 · US
Low refrigerant charge microchannel heat exchanger
US-2017276411-A1 · Sep 28, 2017 · US
System for recycling exhaust heat from internal combustion engine
US-9745881-B2 · Aug 29, 2017 · US
Refrigerant evaporator
US-2017234587-A1 · Aug 17, 2017 · US
Air conditioner
US-2017211886-A1 · Jul 27, 2017 · US
Vanes for heat exchangers
US-2017198988-A1 · Jul 13, 2017 · US
Heat exchanger
US-2017191761-A1 · Jul 6, 2017 · US
Heat exchanger
US-2017160016-A1 · Jun 8, 2017 · US
Heat exchanger for residential hvac applications
US-2017153062-A1 · Jun 1, 2017 · US
Alternating channel heat exchanger
US-9657999-B2 · May 23, 2017 · US
Structural support element in heat exchangers
US-2017122679-A1 · May 4, 2017 · US
Micro channel type heat exchanger
US-2017067690-A1 · Mar 9, 2017 · US
Absorber with plate exchanger with porous distribution element
US-9574803-B2 · Feb 21, 2017 · US
Heat exchanger and air conditioning apparatus
US-9574806-B2 · Feb 21, 2017 · US
Indirect Gas Cooler
US-2017038168-A1 · Feb 9, 2017 · US
Flow Funneling Insert And Heat Exchanger With Flow Funneling Element
US-2017038162-A1 · Feb 9, 2017 · US
Heat exchanger
US-9551540-B2 · Jan 24, 2017 · US
Heat exchanger
US-9518788-B2 · Dec 13, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F9/028?
- CPC F28F9/028 is the Cooperative Patent Classification code for “by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels.”
- How many patents are filed under CPC F28F9/028 (by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels)?
- Our database includes 303 publications tagged with this CPC code.
- Is patent activity under CPC F28F9/028 growing?
- Publication counts under this code: 21 in 2024 vs 34 in 2025 (latest complete years).