For the Inventor, By the Inventor

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Thornwood, NY, United States of America

Carl Zeiss Gmbh

Calculating rank

USPTO Granted Patents = 34

% Expired Patents = 14.7

EPO Patents = 2

Trademarks = 2

Forward Citations = 2,786

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38 inventors (with patents filed for the assignee):

Jay Wei (14 out of 37 patents)

Thomas Hellmuth (8 out of 9 patents)

Ming Lai (5 out of 47 patents)

4. Alan R Kirschbaum (4 out of 6 patents)

5. Christopher L Petersen (4 out of 4 patents)

6. David E Huang (2 out of 57 patents)

7. Thomas Hellmuth (2 out of 3 patents)

8. Bernd Geh (1 out of 19 patents)

9. Michael Kaschke (1 out of 9 patents)

10. Eberhard Derndinger (1 out of 5 patents)

11. Ileana Nedelcu (1 out of 3 patents)

12. Robbert W E Van De Kruijs (1 out of 2 patents)

13. Christopher J R V Baker (1 out of 6 patents)

14. Shiyu Zhang (1 out of 13 patents)

15. Charles E Campbell (1 out of 42 patents)

Core Competencies:

Microlithography

Optical Coherence Tomography

Visual Field Tester

Wavefront Refractor

EUV Lithography

Corneal Mapping

Retinal Tracking

Surgical Microscope

Doppler Velocimetry

Laser Apparatus

Pupil Measurement

Eye Disease Monitoring

34 patents: Sort by Forward Citations

1. 8212988 - Projection objective for microlithography (2012-07-03),

2. 8144830 - Reflective optical element for EUV lithography device (2012-03-27),

3. 6572229 - Back projection visual field tester (2003-06-03),

4. 6422701 - Visual field tester (2002-07-23),

5. 6407872 - Optical path length scanner using moving prisms (2002-06-18),

6. 6406146 - Wavefront refractor simultaneously recording two hartmann-shack images (2002-06-18),

7. 6382795 - Method and apparatus for measuring refractive errors of an eye (2002-05-07),

8. 6382794 - Method and apparatus for mapping a corneal contour and thickness profile (2002-05-07),

9. 6382793 - Method and apparatus for measuring a wavefront (2002-05-07),

10. 6325512 - Retinal tracking assisted optical coherence tomography (2001-12-04),

11. 6293674 - Method and apparatus for diagnosing and monitoring eye disease (2001-09-25),

12. 6220706 - Method and apparatus for determining position of an eye (2001-04-24),

13. 6139150 - Compact visual field tester (2000-10-31),

14. 6053613 - Optical coherence tomography with new interferometer (2000-04-25),

15. 6004314 - Optical coherence tomography assisted surgical apparatus (1999-12-21),

Company Overview

Carl Zeiss GmbH is a global leader in optics and optoelectronics, specializing in the development and manufacturing of precision instruments and systems. The company operates across various sectors, including microscopy, medical technology, and industrial metrology, providing innovative solutions that enhance research and production processes. With a strong emphasis on research and development, Zeiss is committed to advancing optical technologies and improving the quality of life through its diverse product offerings.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

34 Patents

#1 in Thornwood, NY

#601 in New York

#10,022 in US

#19,651 in the World

Thornwood, NY, United States of America

Carl Zeiss Gmbh

Forward Citations = 2,786

38 inventors:

Jay Wei (14 out of 37 patents)

Thomas Hellmuth (8 out of 9 patents)

Ming Lai (5 out of 47 patents)

4. Alan R Kirschbaum (4 out of 6 patents)

5. Christopher L Petersen (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Carl Zeiss Gmbh. Retrieved from https://idiyas.com/company/carl-zeiss

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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