Optical system with cant indication
US-12553688-B2 · Feb 17, 2026 · US
Spirit-level adjusting means, e.g. for correcting tilt; {Means for indicating or correcting tilt or cant}
Spirit-level adjusting means, e.g. for correcting tilt; {Means for indicating or correcting tilt or cant} · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F41G1/44 |
| Official title | Spirit-level adjusting means, e.g. for correcting tilt; {Means for indicating or correcting tilt or cant} |
| Display label | Spirit-level adjusting means, e.g. for correcting tilt; {Means for indicating or correcting tilt or cant} |
| Total patents | 47 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 6 |
| 2018 | 2 |
| 2019 | 8 |
| 2020 | 4 |
| 2021 | 7 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Firearm mount
US-2025334405-A1 · Oct 30, 2025 · US
Weapon anti-cant indicator
US-2025305796-A1 · Oct 2, 2025 · US
Weapon anti-cant indicator
US-12352531-B2 · Jul 8, 2025 · US
Firearm mount
US-12276528-B2 · Apr 15, 2025 · US
Optical system with cant indication
US-2025020435-A1 · Jan 16, 2025 · US
External module and method for electronic compensation of parallax errors in direct-view rifle scopes
US-12117270-B1 · Oct 15, 2024 · US
Optical system with cant indication
US-12031796-B2 · Jul 9, 2024 · US
Firearm mount
US-2024151527-A1 · May 9, 2024 · US
Weapon anti-cant indicator
US-2024077282-A1 · Mar 7, 2024 · US
Targeting system
US-11898820-B2 · Feb 13, 2024 · US
Weapon anti-cant indicator
US-11852441-B2 · Dec 26, 2023 · US
Camouflage fabrics having optimized apparent color and NIR/SWIR spectra
US-11662179-B2 · May 30, 2023 · US
Optical system with cant indication
US-2023112868-A1 · Apr 13, 2023 · US
Optical system with cant indication
US-11402175-B2 · Aug 2, 2022 · US
Targeting system
US-2022205760-A1 · Jun 30, 2022 · US
Method for determining a substitute distance between a location and a substitute impact point of a projectile
US-11327175-B2 · May 10, 2022 · US
Scope mount assembly with integral leveler
US-11293721-B2 · Apr 5, 2022 · US
Scope mount assembly with integral leveler
US-2022065584-A1 · Mar 3, 2022 · US
Turret with a zero stop
US-2021396492-A1 · Dec 23, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F41G1/44?
- CPC F41G1/44 is the Cooperative Patent Classification code for “Spirit-level adjusting means, e.g. for correcting tilt; {Means for indicating or correcting tilt or cant}.”
- How many patents are filed under CPC F41G1/44 (Spirit-level adjusting means, e.g. for correcting tilt; {Means for indicating or correcting tilt or cant})?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC F41G1/44 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).