Microscope objective and microscope observation system
US-2024418976-A1 · Dec 19, 2024 · US
with variable magnification (variable magnification G02B15/00)
with variable magnification (variable magnification G02B15/00) · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G02B21/025 |
| Official title | {with variable magnification (variable magnification G02B15/00)} |
| Display label | with variable magnification (variable magnification G02B15/00) |
| Total patents | 371 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 31 |
| 2016 | 20 |
| 2017 | 37 |
| 2018 | 41 |
| 2019 | 43 |
| 2020 | 55 |
| 2021 | 38 |
| 2022 | 35 |
| 2023 | 23 |
| 2024 | 21 |
| 2025 | 20 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Variable focal length imaging system
US-2017318216-A1 · Nov 2, 2017 · US
Structured illumination microscope and image processing method using the same
US-2017293261-A1 · Oct 12, 2017 · US
Medical stereomicroscope optical system and medical observation apparatus
US-2017293129-A1 · Oct 12, 2017 · US
Light Microscope and Microscopy Method
US-2017192216-A1 · Jul 6, 2017 · US
Zoom objective lens
US-2017176731-A1 · Jun 22, 2017 · US
Microscope
US-2017108683-A1 · Apr 20, 2017 · US
Microscope system, method for controlling microscope system, and computer-readable recording medium
US-2017059842-A1 · Mar 2, 2017 · US
Ophthalmic surgical apparatus and attachment for ophthalmic surgery
US-2017042419-A1 · Feb 16, 2017 · US
Illumination device for microscope and microscope
US-2016377851-A1 · Dec 29, 2016 · US
High numerical aperture telemicroscopy apparatus
US-9523845-B2 · Dec 20, 2016 · US
Electric lens, optical unit, and imaging device
US-2016363742-A1 · Dec 15, 2016 · US
Device for machining an object by means of laser radiation
US-9498844-B2 · Nov 22, 2016 · US
Immersion microscope objective and microscope using the same
US-9477073-B2 · Oct 25, 2016 · US
High-resolution scanning microscopy
US-9470883-B2 · Oct 18, 2016 · US
Method of generating a zoom sequence and microscope system configured to perform the method
US-2016284507-A1 · Sep 29, 2016 · US
Variable magnification optical system, and image pickup apparatus and image pickup optical system using the same
US-2016282592-A1 · Sep 29, 2016 · US
Image pickup apparatus and image pickup system
US-2016266370-A1 · Sep 15, 2016 · US
Optical system and surgical microscope
US-2016259163-A1 · Sep 8, 2016 · US
Telecentric modular zoom system
US-9429740-B2 · Aug 30, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G02B21/025?
- CPC G02B21/025 is the Cooperative Patent Classification code for “with variable magnification (variable magnification G02B15/00).”
- How many patents are filed under CPC G02B21/025 (with variable magnification (variable magnification G02B15/00))?
- Our database includes 371 publications tagged with this CPC code.
- Is patent activity under CPC G02B21/025 growing?
- Publication counts under this code: 21 in 2024 vs 20 in 2025 (latest complete years).