Forward Citations = 32

Loading Chart...

3 inventors (with patents filed for the assignee):

Roy I Steiner (3 out of 4 patents)

Marvin B Steiner (2 out of 3 patents)

Glenn M Steiner (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 4672916 - Belt feeder apparatus with a rotary diverter assembly (1987-06-16),

2. 4500209 - Feed mixing apparatus (1985-02-19),

3. 4444509 - Feed mixing apparatus (1984-04-24),

4. 4423961 - Feed mixing apparatus (1984-01-03),

Company Overview

Sevenson is a leading environmental remediation company specializing in soil and groundwater cleanup, hazardous waste management, and industrial demolition. With over 100 years of experience, Sevenson has a proven track record of delivering innovative and cost-effective solutions to complex environmental challenges. Our team of experts is dedicated to protecting public health and the environment while meeting the needs of our clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#9 in Orrville, OH

#2,335 in Ohio

#60,671 in US

Orrville, OH, United States of America

Sevenson Company

Forward Citations = 32

3 inventors:

Roy I Steiner (3 out of 4 patents)

Marvin B Steiner (2 out of 3 patents)

Glenn M Steiner (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sevenson Company. Retrieved from https://idiyas.com/company/sevenson-company

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]