% Expired Patents = 20.0

Trademarks = 2

Forward Citations = 29

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9 inventors (with patents filed for the assignee):

Kelvin Woltring (2 out of 3 patents)

Wayne A Case (2 out of 11 patents)

Rene Linder (2 out of 2 patents)

4. Randy Willard Perry (1 out of 1 patent)

5. Terry Gene Sherbeck (1 out of 4 patents)

6. Andreas Wilhelm (1 out of 1 patent)

7. Christian N Staats (1 out of 2 patents)

8. Kenneth M Wegrzyn (1 out of 2 patents)

9. Mark E Southwood (1 out of 4 patents)

5 patents: Sort by Forward Citations

1. 8639869 - Portable controller for interfacing with process system components (2014-01-28),

2. 8582117 - Systems and methods for calibrating an optical non-contact surface roughness measurement device (2013-11-12),

3. 8412473 - Event monitoring and detection in liquid level monitoring system (2013-04-02),

4. 5007305 - Ring balancer (1991-04-16),

5. 4951526 - Ring balancer (1990-08-28),

Company Overview

Schmitt Industries, Inc. is a leading provider of highly precise test and measurement systems. Specializing in laser-based technology, the company offers solutions for industries such as electronics, automotive, and aerospace. With a focus on innovation and quality, Schmitt Industries is dedicated to helping customers improve their manufacturing processes and ensure product quality.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#187 in Portland, OR

#569 in Oregon

#51,620 in US

Portland, OR, United States of America

Schmitt Industries, Inc.

Forward Citations = 29

9 inventors:

Kelvin Woltring (2 out of 3 patents)

Wayne A Case (2 out of 11 patents)

Rene Linder (2 out of 2 patents)

4. Randy Willard Perry (1 out of 1 patent)

5. Terry Gene Sherbeck (1 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Schmitt Industries, Inc.. Retrieved from https://idiyas.com/company/schmitt-industries

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]