Trademarks = 3

Forward Citations = 15

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4 inventors (with patents filed for the assignee):

Thomas A Burba (4 out of 7 patents)

David R Hardten (4 out of 10 patents)

Thomas C Prager (4 out of 5 patents)

4. William Thomas Ryder (2 out of 8 patents)

4 patents: Sort by Forward Citations

1. 8062225 - Immersion bag system for use with an ultrasound probe (2011-11-22),

2. 8012095 - Immersion bag system for use with an ultrasound probe (2011-09-06),

3. 8012094 - Immersion bag system for use with an ultrasound probe (2011-09-06),

4. 7285096 - Ultrasound probe positioning immersion shell (2007-10-23),

Company Overview

ESI Group is a leading innovator in virtual prototyping software and services. With digital simulation solutions, ESI enables industry players to replace physical prototypes by virtual prototypes, allowing for quick and cost-effective design and production processes.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#89 in Plymouth, MN

#1,649 in Minnesota

#60,597 in US

Plymouth, MN, United States of America

Esi, Inc.

Forward Citations = 15

4 inventors:

Thomas A Burba (4 out of 7 patents)

David R Hardten (4 out of 10 patents)

Thomas C Prager (4 out of 5 patents)

4. William Thomas Ryder (2 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Esi, Inc.. Retrieved from https://idiyas.com/company/esi

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]