Shell and tube heat exchanger with a shell having a polygonal section
US-2016303533-A1 · Oct 20, 2016 · US
Mechanical Engineering
Mechanical Engineering · 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 | F28F9/00 |
| Official title | — |
| Display label | Mechanical Engineering (mapped technology topic) |
| Total patents | 250 |
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 | 50 |
| 2016 | 24 |
| 2017 | 30 |
| 2018 | 26 |
| 2019 | 29 |
| 2020 | 20 |
| 2021 | 19 |
| 2022 | 13 |
| 2023 | 12 |
| 2024 | 17 |
| 2025 | 5 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compliant tip thermistor with flexible clip for monitoring the temperature of a battery cell
US-9452671-B2 · Sep 27, 2016 · US
Heat exchanger
US-9448010-B2 · Sep 20, 2016 · US
Energy storage system for hybrid electric vehicle
US-9415674-B2 · Aug 16, 2016 · US
Exhaust gas heat exchanger
US-2016177888-A1 · Jun 23, 2016 · US
Exhaust-gas recirculation module for an internal combustion engine
US-9341146-B2 · May 17, 2016 · US
Liquid cooling system and method for cooling at least one radio unit
US-9328971-B2 · May 3, 2016 · US
Battery array safety covers for energy storage system
US-9321340-B2 · Apr 26, 2016 · US
Multi-channel heat exchanger with improved uniformity of refrigerant fluid distribution
US-9291407-B2 · Mar 22, 2016 · US
Air conditioning system and heat exchanger
US-2016059666-A1 · Mar 3, 2016 · US
Steam methane reforming reactor of shell and tube type with cylindrical slots
US-2015376004-A1 · Dec 31, 2015 · US
Multi-channel heat exchanger with improved uniformity of refrigerant fluid distribution
US-2015377566-A1 · Dec 31, 2015 · US
Steam methane reforming reactor of shell and tube type with cylindrical slots
US-2015376005-A1 · Dec 31, 2015 · US
Support mechanism for a heat exchanger in an air-conditioning system
US-9212852-B2 · Dec 15, 2015 · US
Subsea motor-compressor cooling system
US-9206819-B2 · Dec 8, 2015 · US
Exhaust-gas heat exchanger
US-2015328726-A1 · Nov 19, 2015 · US
Battery cooling structure
US-9163887-B2 · Oct 20, 2015 · US
Heat exchanger, particularly for a motor vehicle
US-2015283875-A1 · Oct 8, 2015 · US
Steam methane reforming reactor of shell and tube type with cylindrical slots
US-9145299-B2 · Sep 29, 2015 · US
Evaporator
US-9127892-B2 · Sep 8, 2015 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F28F9/00?
- CPC F28F9/00 is the Cooperative Patent Classification code for “Mechanical Engineering.”
- How many patents are filed under CPC F28F9/00 (Mechanical Engineering)?
- Our database includes 250 publications tagged with this CPC code.
- Is patent activity under CPC F28F9/00 growing?
- Publication counts under this code: 17 in 2024 vs 5 in 2025 (latest complete years).