% Expired Patents = 66.7

Forward Citations = 360

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3 inventors (with patents filed for the assignee):

Dale E Winther (3 out of 7 patents)

Walter K Proniewicz (1 out of 2 patents)

Ernest P Chock (1 out of 3 patents)

3 patents: Sort by Forward Citations

1. 7377643 - Method and apparatus for eye imaging with position registration and constant pupil size (2008-05-27),

2. 7167736 - Non-invasive measurement system and method for measuring the concentration of an optically-active substance (2007-01-23),

3. 6853854 - Noninvasive measurement system (2005-02-08),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

3 Patents

#130 in Pasadena, CA

#16,858 in California

#73,860 in US

Pasadena, CA, United States of America

Q Step Technologies, Inc.

Forward Citations = 360

3 inventors:

Dale E Winther (3 out of 7 patents)

Walter K Proniewicz (1 out of 2 patents)

Ernest P Chock (1 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Q Step Technologies, Inc.. Retrieved from https://idiyas.com/company/q-step-technologies

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]