% Expired Patents = 25.0

EPO Patents = 2

Trademarks = 5

Forward Citations = 55

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3 inventors (with patents filed for the assignee):

Pedro Lilienfeld (3 out of 10 patents)

Henrik Fernand Bernheim (1 out of 14 patents)

Jerritt Harold Hansell (1 out of 11 patents)

4. Alan Drew Barnett (4 patents)

5. Joseph Robert Reed (4 patents)

6. Stan McClellan (1 patent)

7. John J Loporto (4 patents)

4 patents: Sort by Forward Citations

1. 10749571 - System and methods for inferring the feeder and phase powering an on-grid transmitter (2020-08-18),

2. 5349844 - System and method for resonant filter mass monitoring (1994-09-27),

3. 5319575 - System and method for determining and outputting airborne particle (1994-06-07),

4. 4940327 - Method and apparatus for real time asbestos aerosol monitoring (1990-07-10),

TRC Companies, Inc. is a global consulting and construction management firm that provides services to the energy, environmental, and infrastructure markets. With over 50 years of experience, TRC offers innovative solutions to complex challenges, helping clients achieve their goals efficiently and sustainably.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

4 Patents

#14 in Windsor, CT

#1,179 in Connecticut

#60,561 in US

Windsor, CT, United States of America

Trc Companies, Inc.