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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),

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.

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USPTO Data Jan 1 1976 - Dec 16 2025

9 Patents

#14 in Concord, MA

#1,866 in Massachusetts

#31,613 in US

Concord, MA, United States of America

Environmental Research & Technology, Inc.