% Expired Patents = 25.0

Trademarks = 2

Forward Citations = 53

Loading Chart...

7 inventors (with patents filed for the assignee):

Robert G Roodman (3 out of 3 patents)

Jack Smiley (2 out of 2 patents)

Robert Scherrer (2 out of 2 patents)

4. J Michael Havelka (2 out of 2 patents)

5. Al Beatty (1 out of 1 patent)

6. Thomas R Sharp (1 out of 1 patent)

7. James Joseph Knocke (1 out of 4 patents)

4 patents: Sort by Forward Citations

1. 7897070 - Amorphous silica coating for heat reflectivity and heat resistance (2011-03-01),

2. 7300586 - pH stable activated carbon (2007-11-27),

3. 6946077 - pH stable activated carbon (2005-09-20),

4. 6425941 - Oxidation resistant granular activated carbon (2002-07-30),

Company Overview

Envirotrol, Inc. is a leading provider of environmental control solutions for industrial and commercial facilities. With over 20 years of experience, Envirotrol offers a wide range of services including HVAC systems design, installation, and maintenance, as well as air quality monitoring and energy management. Their expertise in sustainable practices and cutting-edge technology ensures optimal performance and cost savings for their clients.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#6 in Conyers, GA

#1,161 in Georgia

#60,671 in US

Conyers, GA, United States of America

Envirotrol, Inc.

Forward Citations = 53

7 inventors:

Robert G Roodman (3 out of 3 patents)

Jack Smiley (2 out of 2 patents)

Robert Scherrer (2 out of 2 patents)

4. J Michael Havelka (2 out of 2 patents)

5. Al Beatty (1 out of 1 patent)

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

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]