Waste heat recovery system and turbine expander for the same
US-2019264606-A1 · Aug 29, 2019 · US
making use of surplus or waste energy
making use of surplus or waste energy · 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 | F05D2220/60 |
| Official title | making use of surplus or waste energy |
| Display label | making use of surplus or waste energy |
| Total patents | 188 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 11 |
| 2017 | 8 |
| 2018 | 17 |
| 2019 | 15 |
| 2020 | 15 |
| 2021 | 21 |
| 2022 | 17 |
| 2023 | 13 |
| 2024 | 34 |
| 2025 | 18 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for detecting an unsealed location in a heat recovery system
US-2019242274-A1 · Aug 8, 2019 · US
Compressed air energy storage power generation device
US-10344628-B2 · Jul 9, 2019 · US
CO2 power generation system
US-10309259-B2 · Jun 4, 2019 · US
Manufacturing method for turbocharger
US-2019112972-A1 · Apr 18, 2019 · US
Condensate recirculation
US-2019093518-A1 · Mar 28, 2019 · US
Compressed air energy storage power generation apparatus
US-2019072032-A1 · Mar 7, 2019 · US
Sunlight-utilizing gas turbine power generation system provided with hydrogen-generating unit
US-10196978-B2 · Feb 5, 2019 · US
Supercharged internal combustion engine
US-2019003374-A1 · Jan 3, 2019 · US
Exhaust section for an aircraft gas turbine engine
US-2018328282-A1 · Nov 15, 2018 · US
Bowed rotor prevention system using waste heat
US-10125636-B2 · Nov 13, 2018 · US
System and method of distillation process and turbine engine intercooler
US-10118108-B2 · Nov 6, 2018 · US
Method for operating a gas turbine arrangement
US-10100661-B2 · Oct 16, 2018 · US
Systems and methods of power allocation for hybrid electric architecture
US-2018291807-A1 · Oct 11, 2018 · US
Compressed air energy storage power generation device and compressed air energy storage power generation method
US-2018266315-A1 · Sep 20, 2018 · US
Method and system for combustion control for gas turbine system with exhaust gas recirculation
US-10060359-B2 · Aug 28, 2018 · US
Icing prevention of a gas turbine engine pressure sensing assembly
US-10030536-B2 · Jul 24, 2018 · US
System and method for heating make-up working fluid of a steam system with engine fluid waste heat
US-10024195-B2 · Jul 17, 2018 · US
Compressed air energy storage power generation device
US-2018171832-A1 · Jun 21, 2018 · US
Erosion suppression system and method in an exhaust gas recirculation gas turbine system
US-2018156136-A1 · Jun 7, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F05D2220/60?
- CPC F05D2220/60 is the Cooperative Patent Classification code for “making use of surplus or waste energy.”
- How many patents are filed under CPC F05D2220/60 (making use of surplus or waste energy)?
- Our database includes 188 publications tagged with this CPC code.
- Is patent activity under CPC F05D2220/60 growing?
- Publication counts under this code: 34 in 2024 vs 18 in 2025 (latest complete years).