EPO Patents = 1

Trademarks = 8

Forward Citations = 56

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5 inventors (with patents filed for the assignee):

David L Carlson (5 out of 6 patents)

David M Vikre (1 out of 1 patent)

James D Gainsley (1 out of 1 patent)

4. William F Hursh (1 out of 1 patent)

5. Jack E Larsen (1 out of 1 patent)

6. Laurent Willerwal (0 patent)

7. Nicolas Lauzy (0 patent)

5 patents: Sort by Forward Citations

1. 4700711 - Ultrasonic detector with integral confidence tests (1987-10-20),

2. 4671289 - Housing for ultrasonic detector (1987-06-09),

3. 4359056 - Automatic digital backfat meter (1982-11-16),

4. 4359055 - Automatic digital backfat meter (1982-11-16),

5. 4112927 - Ultrasonic detector with audible indication signal (1978-09-12),

Company Overview

Renco Corporation is a diversified holding company with a portfolio of companies in various industries, including mining, automotive, energy, and technology. With a focus on innovation and sustainability, Renco Corporation is committed to driving growth and creating value for its stakeholders.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#310 in Minneapolis, MN

#1,421 in Minnesota

#51,620 in US

Minneapolis, MN, United States of America

Renco Corporation

Forward Citations = 56

5 inventors:

David L Carlson (5 out of 6 patents)

David M Vikre (1 out of 1 patent)

James D Gainsley (1 out of 1 patent)

4. William F Hursh (1 out of 1 patent)

5. Jack E Larsen (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Renco Corporation. Retrieved from https://idiyas.com/company/renco

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]

1 patent (EPO):

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]