Compressed air energy storage generator
US-11319948-B2 · May 3, 2022 · US
of similar working principle
of similar working principle · 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 | F01C11/002 |
| Official title | {of similar working principle} |
| Display label | of similar working principle |
| Total patents | 45 |
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 | 4 |
| 2016 | 6 |
| 2017 | 10 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Rotary internal combustion engine with unequal volumetric ratios
US-11261781-B2 · Mar 1, 2022 · US
Method of manufacturing a rotary engine casing
US-10995660-B2 · May 4, 2021 · US
Compound cycle engine
US-10968824-B2 · Apr 6, 2021 · US
Compound cycle engine
US-10920662-B2 · Feb 16, 2021 · US
Compressed air energy storage generator
US-2020325891-A1 · Oct 15, 2020 · US
Rotary internal combustion engine with unequal volumetric ratios
US-2020123970-A1 · Apr 23, 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
Compound engine assembly with common inlet
US-10533489-B2 · Jan 14, 2020 · US
Rotary internal combustion engine with unequal volumetric ratios
US-10526961-B2 · Jan 7, 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
Engine assembly with exhaust pipe nozzle
US-10393014-B2 · Aug 27, 2019 · US
Compound cycle engine
US-2019128177-A1 · May 2, 2019 · US
Compound cycle engine
US-2019040794-A1 · Feb 7, 2019 · US
Compound cycle engine
US-10196971-B2 · Feb 5, 2019 · US
Rotary engine casing
US-2018347457-A1 · Dec 6, 2018 · US
Compound cycle engine
US-10107195-B2 · Oct 23, 2018 · US
Rotary engine casing with seal engaging plate having mating surface defining a fluid cavity
US-10072566-B2 · Sep 11, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01C11/002?
- CPC F01C11/002 is the Cooperative Patent Classification code for “of similar working principle.”
- How many patents are filed under CPC F01C11/002 (of similar working principle)?
- Our database includes 45 publications tagged with this CPC code.
- Is patent activity under CPC F01C11/002 growing?
- Publication counts under this code: 3 in 2021 vs 2 in 2022 (latest complete years).