Elk Grove Village, IL, United States of America

Service Tool International, Inc.

Calculating rank

USPTO Granted Patents = 3

Forward Citations = 11

Loading Chart...

3 inventors (with patents filed for the assignee):

Frank J Herdzina (2 out of 2 patents)

Frank J Herdzina, Jr (1 out of 17 patents)

Steven F Herdzina (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 5329800 - Conversion system having conveyor slide assembly for multiple belts (1994-07-19),

2. 5284045 - End tooling for multiple end diameters (1994-02-08),

3. 5277047 - Conversion system tooling heater (1994-01-11),

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

3 Patents

#84 in Elk Grove Village, IL

#3,453 in Illinois

#73,926 in US

Elk Grove Village, IL, United States of America

Service Tool International, Inc.

Forward Citations = 11

3 inventors:

Frank J Herdzina (2 out of 2 patents)

Frank J Herdzina, Jr (1 out of 17 patents)

Steven F Herdzina (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Service Tool International, Inc.. Retrieved from https://idiyas.com/company/service-tool-international

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]