Forward Citations = 85

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2 inventors (with patents filed for the assignee):

Roger P Hoffman (10 out of 33 patents)

Gerald O Walraven (1 out of 2 patents)

10 patents: Sort by Forward Citations

1. 6228215 - Method for countercurrent treatment of slurries (2001-05-08),

2. 6099674 - Laminated package and method of producing the same (2000-08-08),

3. 6071380 - Method of papermaking having zero liquid discharge (2000-06-06),

4. 5882746 - Laminated package and method of producing the same (1999-03-16),

5. 5762758 - Method of papermaking having zero liquid discharge (1998-06-09),

6. 5753074 - Method of washing a thin mat of cellulosic pulp (1998-05-19),

7. 5643413 - Multi-ply paper product and method of making the same (1997-07-01),

8. 5599426 - Method of washing pulp using a single endless support fabric (1997-02-04),

9. 5500084 - Method and apparatus for pulping cellulosic material using a vessel with (1996-03-19),

10. 5417809 - Water reuse system incorporating vacuum pump sealing water in a zero (1995-05-23),

Company Overview

Hoffman Environmental Systems, Inc. specializes in providing advanced air pollution control solutions and environmental technologies. Based in Green Bay, Wisconsin, the company focuses on developing systems that effectively manage emissions and enhance air quality across various industries. Their expertise encompasses the design and manufacture of equipment tailored to meet stringent environmental regulations, ensuring compliance while promoting sustainability. Hoffman Environmental is committed to innovation in the field of environmental engineering, contributing to cleaner air and a healthier planet.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

10 Patents

#18 in Green Bay, WI

#668 in Wisconsin

#29,839 in US

#55,986 in the World

Green Bay, WI, United States of America

Hoffman Environmental Systems, Inc.

Forward Citations = 85

2 inventors:

Roger P Hoffman (10 out of 33 patents)

Gerald O Walraven (1 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Hoffman Environmental Systems, Inc.. Retrieved from https://idiyas.com/company/hoffman-environmental-systems

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]