How a Rectangular Laser Fiber Improves Skin Treatments
A laser skin treatment tool that uses a special rectangular fiber optic cable to deliver uniform, square-shaped beams from two different laser types at once.
Original patent title: “Laser device for dermocosmetic treatments and tracing kit”
A laser skin treatment tool that uses a special rectangular fiber optic cable to deliver uniform, square-shaped beams from two different laser types at once. Granted to BIOS Srl in 2024 with 10 claims.
Key facts
Coverage
What does this patent actually cover?
This patent describes a handpiece for skin treatments that uses a single rectangular-shaped optical fiber to channel light from two different laser sources. By using a rectangular core rather than a traditional circular one, the device creates uniform, sharp-edged rectangular light patterns on the skin. The system includes an illuminator to help the operator see the treatment area and sensors that track the handpiece's position. This ensures the lasers only fire when the device is correctly aligned with the target area, preventing overlap or missed spots.
The gap
What does this patent NOT cover?
- Does not cover circular or non-rectangular laser beam profiles.
- Does not cover systems that lack a secondary illuminator for pre-treatment visualization.
- Does not cover laser systems that use a single wavelength source.
- Does not cover non-contact laser systems that lack position-sensing synchronization.
These exclusions are unique to PatentBrief — derived from the actual claim language, not patent-office boilerplate.
What made this novel
The use of a single-core rectangular optical fiber to homogenize and shape the output of two distinct laser wavelengths (like Nd:YAG and Alexandrite) simultaneously, ensuring uniform intensity across the entire rectangular footprint.
Schematic visualization of the patent's claim structure. Hand-drawn diagrams in progress for each landmark patent.
Where you've seen this
Real-world examples
Dermatological laser hair removal systems
Skin resurfacing devices
Pigmented lesion removal tools
Why it matters
The bigger picture
In dermatology, overlapping laser pulses can cause burns or uneven results, while gaps lead to ineffective treatment. By forcing the laser light into a precise rectangular shape, this invention allows practitioners to 'tile' the treatment area like a grid, which is significantly more efficient and safer than trying to overlap circular beams.
Filed
April 25, 2022
Granted
December 17, 2024
Market context
Who's building on this
Companies in this space
The assigneeassigneeThe entity that owns the patent — usually the inventor's employer or a company.Read more →, BIOS Srl, is actively developing this technology. This approach is highly relevant to manufacturers of professional-grade aesthetic laser equipment who are looking to improve the speed and safety of skin-contact treatments.
Market impact
This patent provides a technical framework for more predictable skin treatment outcomes by standardizing the geometry of the laser beam. It helps manufacturers move away from 'free-hand' circular scanning toward a more controlled, grid-based approach, which reduces the need for highly specialized manual technique.
Claim 1 — Plain English
What this patent covers
This patent describes a handpiece for skin treatments that uses a single rectangular-shaped optical fiber to channel light from two different laser sources. By using a rectangular core rather than a traditional circular one, the device creates uniform, sharp-edged rectangular light patterns on the skin. The system includes an illuminator to help the operator see the treatment area and sensors that track the handpiece's position. This ensures the lasers only fire when the device is correctly aligned with the target area, preventing overlap or missed spots.
The clever bit
The use of a single-core rectangular optical fiber to homogenize and shape the output of two distinct laser wavelengths (like Nd:YAG and Alexandrite) simultaneously, ensuring uniform intensity across the entire rectangular footprint.
What it does not cover
- Does not cover circular or non-rectangular laser beam profiles.
- Does not cover systems that lack a secondary illuminator for pre-treatment visualization.
- Does not cover laser systems that use a single wavelength source.
- Does not cover non-contact laser systems that lack position-sensing synchronization.
Patent timeline
Application submitted to the patent office
Application published, typically 18 months after filing
Patent officially issued
PatentBrief Score
Impact Score
Early stage
Citation count
0/40
No citations yet
Claim breadth
7/20
Moderate scope
Recency
20/20
Granted within 5 years
Assignee scale
0/20
Independent or smaller assigneeassigneeThe entity that owns the patent — usually the inventor's employer or a company.Read more →
PatentBrief Impact Score — based on citation count, claim breadth, recency, and assignee scale. Not a legal assessment.
Heuristic Value Estimate
What this patent might be worth
$50K – $158K
Midpoint $99K · 15.9 yr remaining · industry ×2.2
Heuristic only — blends forward/backward citation counts, claim scope, time remaining, litigation history, and CPC-derived industry baseline. Real valuations need a professional appraisal.
The original legal language
Original claims
10 claims as filed with the patent office.
Concepts involved
Citations
Patent lineage
Cite this patent
CASALINO, L., & Casalino, A. (2024). How a Rectangular Laser Fiber Improves Skin Treatments (U.S. Patent No. 12,167,890). U.S. Patent and Trademark Office. https://patentbrief.org/patent/us/12167890/cargo-dragon
Auto-generated from the patent record. Double-check author order and the issue date against the official USPTO document before submitting.
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Common Questions
Frequently Asked Questions
What does How a Rectangular Laser Fiber Improves Skin Treatments cover?
A laser skin treatment tool that uses a special rectangular fiber optic cable to deliver uniform, square-shaped beams from two different laser types at once.
Who owns patent US 12167890?
BIOS Srl owns this patent, granted in 2024.
When does this patent expire?
This patent is expected to expire on December 17, 2044, when the invention enters the public domain.
What problem does this patent solve?
In dermatology, overlapping laser pulses can cause burns or uneven results, while gaps lead to ineffective treatment. By forcing the laser light into a precise rectangular shape, this invention allows practitioners to 'tile' the treatment area like a grid, which is significantly more efficient and safer than trying to overlap circular beams.
What does this patent NOT cover?
Does not cover circular or non-rectangular laser beam profiles.
Patent monitoring