USI
Filed: June 21, 1996
electric power monitoring, rating, diagnostic and control systems comprised of sensors, signal processors, software and…
Owned by: Underground Systems, Inc.
Serial Number: 75123345
USI
Filed: June 27, 1996
electronic inventory monitoring and control equipment for storage tanks
Owned by: Underground Systems, Inc.
Serial Number: 75126333
UPRATE
Filed: June 19, 1998
Electric current, voltage and heat sensors; electrical and/or optical circuits including wires and cables, signal conditioners…
Owned by: Underground Systems, Inc.
Serial Number: 75505075
MULTIGAS
Sensors and analyzers for testing the presence and measuring the concentration of gases
Owned by: Underground Systems, Inc.
Serial Number: 75639325
TPA
Test instrument and computer software used for determining thermal properties for electrical power analysis
Owned by: Underground Systems, Inc.
Serial Number: 76456693
PD2
Sensing and power rating measuring devices for use with overhead high voltage transmission lines
Owned by: Underground Systems, Inc.
Serial Number: 77486481
POWER DONUT2
Electronic sensing, measuring and electric power rating device for determining the performance and efficiency of electric…
Owned by: Underground Systems, Inc.
Serial Number: 77614374
