Forward Citations = 144

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5 inventors (with patents filed for the assignee):

Paul L Kebabian (7 out of 20 patents)

Henry H Blau, Jr (3 out of 3 patents)

James R Kittrell (1 out of 16 patents)

4. Patrick S Tam (1 out of 1 patent)

5. George M Wong-Chong (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 4605313 - Infrared detector for NDIR gas analysis (1986-08-12),

2. 4537682 - Activated sludge wastewater treating process (1985-08-27),

3. 4485007 - Process for purifying hydrocarbonaceous oils (1984-11-27),

4. 4397025 - Dual frequency laser (1983-08-02),

5. 4112028 - Light equalizer and method of making same (1978-09-05),

6. 4111731 - Method of making a light equalizer (1978-09-05),

7. 4059356 - Gas detector (1977-11-22),

8. 3997240 - Optical system using light equalizer with partially reflective plane (1976-12-14),

9. 3970375 - Light equalizer (1976-07-20),

Company Overview

Environmental Research & Technology, Inc. (ERT) is a leading provider of environmental consulting, engineering, and technology services. With a focus on sustainable solutions, ERT helps clients manage environmental challenges and meet regulatory requirements. The company offers expertise in areas such as air quality, water resources, waste management, and environmental compliance. ERT's innovative approach and commitment to quality have made them a trusted partner for businesses and government agencies alike.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

9 Patents

#16 in Concord, MA

#1,926 in Massachusetts

#32,588 in US

Concord, MA, United States of America

Environmental Research & Technology, Inc.

Forward Citations = 144

5 inventors:

Paul L Kebabian (7 out of 20 patents)

Henry H Blau, Jr (3 out of 3 patents)

James R Kittrell (1 out of 16 patents)

4. Patrick S Tam (1 out of 1 patent)

5. George M Wong-Chong (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Environmental Research & Technology, Inc.. Retrieved from https://idiyas.com/company/environmental-research-and-technology

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]