Trademarks = 3

Forward Citations = 180

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9 inventors (with patents filed for the assignee):

Gerhard Kreikebaum (3 out of 10 patents)

Frederick M Shofner (1 out of 48 patents)

Robert J Nuspliger (1 out of 2 patents)

4. Bruce E Bernacki (1 out of 4 patents)

5. Arthur C Miller, Jr (1 out of 5 patents)

6. George J Hyfantis, Jr (1 out of 3 patents)

7. James Randall McKennon (1 out of 1 patent)

8. Thomas B Carlson (1 out of 1 patent)

9. Harold W Schmitt (1 out of 1 patent)

6 patents: Sort by Forward Citations

1. 6036324 - Catadioptric zoom scattering collector (2000-03-14),

2. 5976377 - System and method for the reduction of the biological oxygen demand (1999-11-02),

3. 4290695 - Method and apparatus for measurement of transmittance and scatter of (1981-09-22),

4. 4140395 - Electro-optical method and system for in situ measurements of particle (1979-02-20),

5. 4122719 - System for accurate measurement of temperature (1978-10-31),

6. 4017186 - Electro-optical method and system for in situ measurements of (1977-04-12),

Company Overview

Environmental Systems Corporation is a leading provider of environmental consulting services, specializing in air quality management, water resource planning, and waste management solutions. With over 20 years of experience, we help clients navigate complex environmental regulations and develop sustainable strategies for a cleaner, healthier planet.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

6 Patents

#48 in Knoxville, TN

#477 in Tennessee

#45,007 in US

Knoxville, TN, United States of America

Environmental Systems Corporation

Forward Citations = 180

9 inventors:

Gerhard Kreikebaum (3 out of 10 patents)

Frederick M Shofner (1 out of 48 patents)

Robert J Nuspliger (1 out of 2 patents)

4. Bruce E Bernacki (1 out of 4 patents)

5. Arthur C Miller, Jr (1 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Environmental Systems Corporation. Retrieved from https://idiyas.com/company/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]