Elliptical-rectangular film cooling hole
US-2026063295-A1 · Mar 5, 2026 · US
parabolic
parabolic · 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 | F05D2250/16 |
| Official title | parabolic |
| Display label | parabolic |
| Total patents | 42 |
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 | 2 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 2 |
| 2024 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Step seal for refrigerant compressors
US-12146501-B2 · Nov 19, 2024 · US
Turbine rotor blade
US-12006839-B2 · Jun 11, 2024 · US
Step seal for refrigerant compressors
US-2023279865-A1 · Sep 7, 2023 · US
Step seal for refrigerant compressors
US-11692557-B2 · Jul 4, 2023 · US
Channeling furrow upstream of a blade
US-11519274-B2 · Dec 6, 2022 · US
Gas turbine engine airfoil fairing with rib having radial notch
US-11459894-B1 · Oct 4, 2022 · US
Gas turbine engine airfoil fairing with rib having radial notch
US-2022290567-A1 · Sep 15, 2022 · US
Turbine rotor blade
US-2022282624-A1 · Sep 8, 2022 · US
Ceiling fan blade
US-11415146-B2 · Aug 16, 2022 · US
Step seal for refrigerant compressors
US-2022213896-A1 · Jul 7, 2022 · US
Ceiling fan blade
US-11261877-B2 · Mar 1, 2022 · US
Method for introducing a balancing mark into the compressor wheel of a turbocharger, and turbocharger comprising a compressor wheel which has a balancing mark
US-11135661-B2 · Oct 5, 2021 · US
Centrifugal compressor with diffuser with throat
US-11125235-B2 · Sep 21, 2021 · US
Channeling furrow upstream of a blade
US-2021254470-A1 · Aug 19, 2021 · US
Fan cowl with a serrated trailing edge providing attached flow in reverse thrust mode
US-11053888-B2 · Jul 6, 2021 · US
Ceiling fan blade
US-10995769-B2 · May 4, 2021 · US
Turbine airfoil with biased trailing edge cooling arrangement
US-10900361-B2 · Jan 26, 2021 · US
Nested article by additive manufacturing with non-removable internal supporting structure
US-10865990-B2 · Dec 15, 2020 · US
Blade structure for turbomachine
US-10808535-B2 · Oct 20, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F05D2250/16?
- CPC F05D2250/16 is the Cooperative Patent Classification code for “parabolic.”
- How many patents are filed under CPC F05D2250/16 (parabolic)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC F05D2250/16 growing?
- Publication counts under this code: 2 in 2023 vs 2 in 2024 (latest complete years).