Press forming fracture judgment method, device, and program, and press formed part manufacturing method
US-2026056101-A1 · Feb 26, 2026 · US
Investigating ductility, e.g. suitability of sheet metal for deep-drawing or spinning
Investigating ductility, e.g. suitability of sheet metal for deep-drawing or spinning · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01N3/28 |
| Official title | Investigating ductility, e.g. suitability of sheet metal for deep-drawing or spinning |
| Display label | Investigating ductility, e.g. suitability of sheet metal for deep-drawing or spinning |
| Total patents | 59 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 8 |
| 2019 | 10 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 9 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and apparatus of acquiring forming limit of metal sheet
US-2025369846-A1 · Dec 4, 2025 · US
Method, device, and program for predicting delayed fracture in press formed part, and method of manufacturing press formed part
US-2025190644-A1 · Jun 12, 2025 · US
Press formed part fracture determination method and press formed part fracture countermeasure decision method
US-2025001539-A1 · Jan 2, 2025 · US
Press forming fracture determination method, press forming fracture determination device, and press forming fracture determination program, and press forming fracture inhibition method
US-2024408661-A1 · Dec 12, 2024 · US
Method for identifying necking limit strain of metal sheet
US-12117422-B2 · Oct 15, 2024 · US
Method for evaluating embrittlement of amorphous alloy ribbon and test device for evaluating embrittlement of amorphous alloy ribbon
US-12099039-B2 · Sep 24, 2024 · US
Optimization method and system for hybrid FRP and steel bars
US-12099785-B2 · Sep 24, 2024 · US
Optimization method and system for hybrid frp and steel bars
US-2024211652-A1 · Jun 27, 2024 · US
Method for evaluating bending crack, system for evaluating bending crack, and method for manufacturing press-formed component
US-12017265-B2 · Jun 25, 2024 · US
Material test systems for generating static and dynamic diagnostic information
US-2024159633-A1 · May 16, 2024 · US
Working Method of Material, and Process Design Computer and Program of the Same
US-2024033801-A1 · Feb 1, 2024 · US
Shifting a forming limit curve based on zero friction analysis
US-11886778-B2 · Jan 30, 2024 · US
Method for identifying necking limit strain of metal sheet
US-2023152195-A1 · May 18, 2023 · US
Deformation limit evaluation method for sheared surface of metal sheet, crack prediction method, and press die designing method
US-11609166-B2 · Mar 21, 2023 · US
Press die designing method using an index value obtained from two stress gradients in sheet thickness direction and gradient of surface stress distribution in direction
US-11590591-B2 · Feb 28, 2023 · US
Devices and methods for holding a sample for multi-axial testing
US-11577296-B2 · Feb 14, 2023 · US
Method for evaluating embrittlement of amorphous alloy ribbon and test device for evaluating embrittlement of amorphous alloy ribbon
US-2022236158-A1 · Jul 28, 2022 · US
Processes for predicting small scale steady state (S4) critical temperatures
US-11360011-B2 · Jun 14, 2022 · US
Method for evaluating bending crack, system for evaluating bending crack, and method for manufacturing press-formed component
US-2022168791-A1 · Jun 2, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01N3/28?
- CPC G01N3/28 is the Cooperative Patent Classification code for “Investigating ductility, e.g. suitability of sheet metal for deep-drawing or spinning.”
- How many patents are filed under CPC G01N3/28 (Investigating ductility, e.g. suitability of sheet metal for deep-drawing or spinning)?
- Our database includes 59 publications tagged with this CPC code.
- Is patent activity under CPC G01N3/28 growing?
- Publication counts under this code: 9 in 2024 vs 3 in 2025 (latest complete years).