Middletown, CT, United States of America

Peter J De Groot

This inventor holds 122 USPTO granted patents and 2 published patent applications and 12 EPO patents, primarily in Interferometric Metrology (CPC class G01B9-02). Top assignees: Zygo Corporation, The Boeing Company. Active years: 1994-2024.

USPTO Granted Patents = 122 (Patent Applications = 2)

% Patents Active = 80.3

EPO Patents = 12 (Patent Applications = 8)

Average Co-Inventor Count = 1.6

ph-index = 32

Forward Citations = 2,753(Granted Patents)

Forward Citations (Not Self Cited) = 1,897(Dec 10, 2025)

Inventors with similar research interests:

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Location History:

Bellevue, WA (US) (1994)
Middleton, CT (US) (2004 - 2008)
Middletown, CT (US) (1995 - 2020)

Company Filing History:

Years Active: 1994-2024

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Areas of Expertise:

Interferometric Systems

Optical Evaluation

Surface Topography

Calibration Techniques

Low Coherence Interferometry

Phase Shifting Interferometry

Lateral Metrology

Thin Film Characterization

Double Pass Encoder

Refractive Index Dispersion

Fiber-Based Interferometer

Spectral Analysis

122 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12104897 - Interometric optical system (2024-10-01),

2. 10591284 - Metrology of multi-layer stacks (2020-03-17),

3. 10451413 - Surface topography apparatus and method (2019-10-22),

4. 9958254 - Calibration of scanning interferometers (2018-05-01),

5. 9798130 - Measuring topography of aspheric and other non-flat surfaces (2017-10-24),

6. 9746348 - Double pass interferometric encoder system (2017-08-29),

7. 9658129 - Method and system for determining information about a transparent optical element comprising a lens portion and a plane parallel portion (2017-05-23),

8. 9599534 - Optical evaluation of lenses and lens molds (2017-03-21),

9. 9377292 - Interferometry employing refractive index dispersion broadening of interference signals (2016-06-28),

10. 9140537 - Interferometric heterodyne optical encoder system (2015-09-22),

11. 9025162 - Interferometry for lateral metrology (2015-05-05),

12. 9025161 - Double pass interferometric encoder system (2015-05-05),

13. 8988690 - Interferometric encoder systems (2015-03-24),

14. 8902431 - Low coherence interferometry with scan error correction (2014-12-02),

15. 8885172 - Interferometric heterodyne optical encoder system (2014-11-11),

Title: The Innovative Journey of Peter J de Groot

Introduction: Peter J de Groot is a renowned inventor based in Middletown, CT (US) known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Peter J de Groot holds several patents in the areas of optical technology, semiconductor devices, and laser systems, showcasing his expertise and creativity in these domains.

Career Highlights: With a career spanning over two decades, Peter J de Groot has worked tirelessly to push the boundaries of technological advancements. His work has not only revolutionized the industry but has also earned him recognition as a pioneer in his field.

Collaborations: Throughout his career, Peter J de Groot has collaborated with leading research institutions, universities, and tech companies to further his research and bring his inventions to life. His collaborative spirit has led to the development of cutting-edge technologies that have had a lasting impact on the industry.

Conclusion: Peter J de Groot's passion for innovation and his relentless pursuit of excellence have solidified his position as a trailblazer in the world of technology. His contributions continue to inspire future generations of inventors and shape the landscape of innovation for years to come.