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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),

Hoffman Environmental Systems, Inc. is a leading provider of environmental remediation services. With over 20 years of experience, we specialize in soil and groundwater remediation, tank removal, and hazardous waste management. Our team of experts is committed to delivering cost-effective solutions that meet regulatory compliance standards and protect the environment.

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Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

10 Patents

#18 in Green Bay, WI

#665 in Wisconsin

#29,779 in US

#55,869 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)

Please report any incorrect information to [email protected]