Karol Constantine Hatzilias

This inventor holds 50 USPTO granted patents and 25 published patent applications and 4 EPO patents, primarily in Optical Technologies. Top assignees: Meta Platforms, Inc., Meta Platforms Technologies, LLC. Active years: 2020-2026.

USPTO Granted Patents = 50 (Patent Applications = 25)

% Patents Active = 92.0

EPO Patents = 4 (Patent Applications = 17)

Average Co-Inventor Count = 5.2

ph-index = 8

Forward Citations = 185(Granted Patents)

Location History:

Kenmore, CA (US) (2021)
San Francisco, CA (US) (2021)
Kenmore, WA (US) (2020 - 2024)
Sammamish, WA (US) (2024)

Company Filing History:

Meta Platforms Technologies, LLC

patents

Years Active: 2020-2026

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Areas of Expertise:

Eye Tracking

Beam Shaping

Head-Mounted Displays

Optical Assemblies

Waveguide Sensing

Holographic Elements

Illumination Systems

Active Optics

Prescription Lenses

Vertical Cavity Lasers

Optical Lens Designs

Stray Light Suppression

50 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12699445 - Systems and methods for calibrating eye tracking (2026-08-04),

2. 12510960 - Frame tracking system for a head-mounted device (2025-12-30),

3. 12474577 - Waveguide disparity sensing (2025-11-18),

4. 12352970 - Dimming control with display-directed activation light for an optical assembly (2025-07-08),

5. 12270992 - Beam shaping optic for light sources (2025-04-08),

6. 12074408 - Vertical cavity surface-emitting laser (VCSEL) with a light barrier (2024-08-27),

7. 12073015 - Systems and methods for calibrating eye tracking (2024-08-27),

8. 12013531 - Active disparity sensing of head mounted display (2024-06-18),

9. 11977231 - Optical lens assemblies (2024-05-07),

10. 11848542 - Active optics feedback and calibration (2023-12-19),

11. 11796829 - In-field illuminator for eye depth sensing (2023-10-24),

12. 11650426 - Holographic optical elements for eye-tracking illumination (2023-05-16),

13. 11650403 - Optical elements for beam-shaping and illumination (2023-05-16),

14. 11649935 - Coupling light source to photonic integrated circuit (2023-05-16),

15. 11604366 - Head-mounted display devices with removable prescription lenses (2023-03-14),

Title: Karol Constantine Hatzilias: Pioneering Inventor from Kenmore, WA

Introduction: Karol Constantine Hatzilias is a renowned inventor based in Kenmore, WA, known for his groundbreaking contributions to various fields through his innovative creations.

Latest Patents: Karol Constantine Hatzilias holds several patents in the areas of renewable energy technologies, sustainable agriculture solutions, and advanced medical devices, showcasing his diverse range of expertise.

Career Highlights: With a career spanning over two decades, Hatzilias has established himself as a visionary inventor, with a keen focus on developing technologies that have a positive impact on society and the environment.

Collaborations: Throughout his career, Karol Constantine Hatzilias has collaborated with leading research institutions, universities, and companies to bring his inventions to life, fostering a culture of innovation and progress.

Conclusion: Karol Constantine Hatzilias continues to inspire the next generation of inventors with his passion for creating solutions that address some of the most pressing challenges of our time, solidifying his legacy as a true pioneer in the world of innovation.