Deep roll peening system and method
US-2020384607-A1 · Dec 10, 2020 · US
by burnishing or the like
by burnishing or the like · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C21D7/08 |
| Official title | by burnishing or the like |
| Display label | by burnishing or the like |
| Total patents | 77 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 8 |
| 2017 | 14 |
| 2018 | 14 |
| 2019 | 6 |
| 2020 | 8 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Roller burnishing tool
US-2020262026-A1 · Aug 20, 2020 · US
Metallic components with enhanced mechanical strength through surface mechanical grinding
US-2020239975-A1 · Jul 30, 2020 · US
Preventing cracks at bolted or riveted joints of aircraft structural parts
US-10633116-B2 · Apr 28, 2020 · US
Deep roll peening system and method
US-10603761-B2 · Mar 31, 2020 · US
Burnishing tool and method of manufacturing the same
US-10603764-B2 · Mar 31, 2020 · US
Cold expansion tool for expanding a bore through a part
US-2019358695-A1 · Nov 28, 2019 · US
Method of imparting compressive residual stress to balls
US-10480578-B2 · Nov 19, 2019 · US
Laser-hardened fillet-rolled crankshaft
US-2019143398-A1 · May 16, 2019 · US
Systems and methods for treating an engine flange
US-2019091753-A1 · Mar 28, 2019 · US
Method for coating a cylinder wall of an internal combustion engine
US-10226787-B2 · Mar 12, 2019 · US
Method for machining a cylinder wall of an internal combustion engine
US-10214803-B2 · Feb 26, 2019 · US
Solid-State Welding of Coarse Grain Powder Metallurgy Nickel-Based Superalloys
US-2018371594-A1 · Dec 27, 2018 · US
Burnishing tool and method of manufacturing the same
US-2018339398-A1 · Nov 29, 2018 · US
Green repair of oxidation and corrosion resistant coatings
US-2018334925-A1 · Nov 22, 2018 · US
Pneumatic needling device
US-10131963-B2 · Nov 20, 2018 · US
Apparatus for producing compressive residual stress in balls
US-10118274-B2 · Nov 6, 2018 · US
Apparatus for smoothing a toothing system and production process
US-10010927-B2 · Jul 3, 2018 · US
Deep rolling tool and method
US-2018171448-A1 · Jun 21, 2018 · US
Deep rolling tool for blade fatigue life enhancement
US-9999958-B2 · Jun 19, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21D7/08?
- CPC C21D7/08 is the Cooperative Patent Classification code for “by burnishing or the like.”
- How many patents are filed under CPC C21D7/08 (by burnishing or the like)?
- Our database includes 77 publications tagged with this CPC code.
- Is patent activity under CPC C21D7/08 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).