Method to Determine Mixed-Mode (I/III) Dynamic Fracture Toughness of Materials
US-2020408657-A1 · Dec 31, 2020 · US
by applying steady torsional forces (G01N3/26, G01N3/28 take precedence)
by applying steady torsional forces (G01N3/26, G01N3/28 take precedence) · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01N3/22 |
| Official title | by applying steady torsional forces (G01N3/26, G01N3/28 take precedence) |
| Display label | by applying steady torsional forces (G01N3/26, G01N3/28 take precedence) |
| Total patents | 124 |
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 | 6 |
| 2017 | 6 |
| 2018 | 9 |
| 2019 | 12 |
| 2020 | 17 |
| 2021 | 8 |
| 2022 | 11 |
| 2023 | 11 |
| 2024 | 19 |
| 2025 | 12 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of making a tubular specimen with a predetermined wrinkle defect
US-2020340894-A1 · Oct 29, 2020 · US
Crushing system for large-size natural gas hydrate rock samples
US-2020290052-A1 · Sep 17, 2020 · US
Racquet configured with increased flexibility in multiple directions with respect to a longitudinal axis
US-10751581-B2 · Aug 25, 2020 · US
Method and apparatus for measuring rigidity distribution
US-2020263970-A1 · Aug 20, 2020 · US
Methods of making a tubular specimen with a predetermined wrinkle defect
US-10746640-B2 · Aug 18, 2020 · US
Outer loop torque control
US-10724931-B2 · Jul 28, 2020 · US
Torsion testing machine and methods for additive builds
US-2020182764-A1 · Jun 11, 2020 · US
Safety systems and material testing systems including safety systems
US-2020173893-A1 · Jun 4, 2020 · US
Racquet configured with increased flexibility in multiple directions with respect to a longitudinal axis
US-10653924-B2 · May 19, 2020 · US
Racquet configured with increased flexibility in multiple directions with respect to a longitudinal axis
US-10646753-B2 · May 12, 2020 · US
Outer loop torque control
US-2020116605-A1 · Apr 16, 2020 · US
Torsion testing machine and methods for additive builds
US-10578531-B2 · Mar 3, 2020 · US
Torsion testing machine and methods for additive builds
US-10571377-B2 · Feb 25, 2020 · US
Torsion testing machine and methods for additive builds
US-2020018674-A1 · Jan 16, 2020 · US
In situ microscopy of rotationally deformed sample
US-2019317033-A1 · Oct 17, 2019 · US
Material in-situ detection device and method under multi-load and multi-physical field coupled service conditions
US-10444130-B2 · Oct 15, 2019 · US
Racquet configured with increased flexibility in multiple directions with respect to a longitudinal axis
US-2019275379-A1 · Sep 12, 2019 · US
Racquet configured with increased flexibility in multiple directions with respect to a longitudinal axis
US-2019275377-A1 · Sep 12, 2019 · US
Racquet configured with increased flexibility in multiple directions with respect to a longitudinal axis
US-2019275378-A1 · Sep 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01N3/22?
- CPC G01N3/22 is the Cooperative Patent Classification code for “by applying steady torsional forces (G01N3/26, G01N3/28 take precedence).”
- How many patents are filed under CPC G01N3/22 (by applying steady torsional forces (G01N3/26, G01N3/28 take precedence))?
- Our database includes 124 publications tagged with this CPC code.
- Is patent activity under CPC G01N3/22 growing?
- Publication counts under this code: 19 in 2024 vs 12 in 2025 (latest complete years).