System and method for grain refinement and general control of grain morphology in laser additive manufacturing
US-2019381602-A1 · Dec 19, 2019 · US
using multifaceted mirrors, e.g. polygonal mirror
using multifaceted mirrors, e.g. polygonal mirror · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B23K26/0821 |
| Official title | {using multifaceted mirrors, e.g. polygonal mirror} |
| Display label | using multifaceted mirrors, e.g. polygonal mirror |
| Total patents | 201 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 8 |
| 2017 | 10 |
| 2018 | 11 |
| 2019 | 28 |
| 2020 | 19 |
| 2021 | 34 |
| 2022 | 28 |
| 2023 | 18 |
| 2024 | 23 |
| 2025 | 14 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Portable Surface Finishing Device Based on Coherent Light Source
US-2019339512-A1 · Nov 7, 2019 · US
Laser scan head design for three scanning mirrors with optics
US-2019337092-A1 · Nov 7, 2019 · US
System and Method for Variable Perforation Profiles in a Stack of Lottery Tickets
US-2019332092-A1 · Oct 31, 2019 · US
Three-dimensional printing
US-2019232429-A1 · Aug 1, 2019 · US
System and method for variable perforation profiles in a stack of lottery tickets based on fold pattern
US-10343236-B2 · Jul 9, 2019 · US
System and method for variable perforation profiles in a stack of lottery tickets
US-10345789-B2 · Jul 9, 2019 · US
Systems and methods for global thermal control of additive manufacturing
US-2019184494-A1 · Jun 20, 2019 · US
Laser marking system with through-the-lens autofocus
US-2019151992-A1 · May 23, 2019 · US
Laser machining apparatus
US-2019151988-A1 · May 23, 2019 · US
Acousto-optics deflector and mirror for laser beam steering
US-10286488-B2 · May 14, 2019 · US
Cutting device for thin semiconductor wafer and cutting method thereof
US-2019126394-A1 · May 2, 2019 · US
Laser processing apparatus
US-2019126397-A1 · May 2, 2019 · US
Three-dimensional printing systems and methods of their use
US-10272525-B1 · Apr 30, 2019 · US
Laser processing apparatus
US-2019122907-A1 · Apr 25, 2019 · US
Sensing and Control of Additive Manufacturing Processes
US-2019118300-A1 · Apr 25, 2019 · US
Laser processing apparatus
US-2019105734-A1 · Apr 11, 2019 · US
Laser processing apparatus
US-2019076961-A1 · Mar 14, 2019 · US
Galvano scanner and laser machining system
US-2019061064-A1 · Feb 28, 2019 · US
Method for refining magnetic domains of grain-oriented electrical steel plates, and apparatus therefor
US-2019062866-A1 · Feb 28, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B23K26/0821?
- CPC B23K26/0821 is the Cooperative Patent Classification code for “using multifaceted mirrors, e.g. polygonal mirror.”
- How many patents are filed under CPC B23K26/0821 (using multifaceted mirrors, e.g. polygonal mirror)?
- Our database includes 201 publications tagged with this CPC code.
- Is patent activity under CPC B23K26/0821 growing?
- Publication counts under this code: 23 in 2024 vs 14 in 2025 (latest complete years).