Compressed air energy storage generator
US-11319948-B2 · May 3, 2022 · US
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specially adapted for several machines or engines connected in series or in parallel
specially adapted for several machines or engines connected in series or in parallel · 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 | F01C20/02 |
| Official title | specially adapted for several machines or engines connected in series or in parallel |
| Display label | specially adapted for several machines or engines connected in series or in parallel |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of manufacturing a rotary engine casing
US-10995660-B2 · May 4, 2021 · US
Compressed air energy storage generator
US-2020325891-A1 · Oct 15, 2020 · US
Engine assembly with multiple rotary engine stacks
US-2020102884-A1 · Apr 2, 2020 · US
Rotary engine casing
US-2020040813-A1 · Feb 6, 2020 · US
Method of manufacturing a rotary engine casing
US-10473026-B2 · Nov 12, 2019 · US
Rotary actuator
US-10400602-B2 · Sep 3, 2019 · US
Rotary engine casing
US-2018347457-A1 · Dec 6, 2018 · US
Rotary engine casing with seal engaging plate having mating surface defining a fluid cavity
US-10072566-B2 · Sep 11, 2018 · US
Rotary actuator
US-2017298734-A1 · Oct 19, 2017 · US
Rotary actuator
US-9726171-B2 · Aug 8, 2017 · US
Rotary engine casing
US-2017175620-A1 · Jun 22, 2017 · US
Optimized performance strategy for a multi-stage volumetric expander
US-2017167302-A1 · Jun 15, 2017 · US