POWERS
Filed: July 23, 1948
FLUID MIXING VALVES; AIR MIXING VALVES; PRESSURE REGULATORS AND REDUCING VALVES; SELF-CLEANING FLUID STRAINERS; STEAM TRAPS…
Owned by: LANDIS & GYR POWERS, INC.
Serial Number: 71562084
SMARTGYR
Filed: April 3, 1992
control apparatus for use with combustion products and with heating, cooling, ventilating security, lighting, and power…
Owned by: LANDIS & GYR POWERS, INC.
Serial Number: 74262342
UNITRAK
Filed: September 28, 1992
sash sensors for laboratory fume hoods
Owned by: LANDIS & GYR POWERS, INC.
Serial Number: 74318457
THE BUILDING PERFORMANCE PROFESSIONALS
Filed: October 1, 1992
installation, repair and maintenance of pneumatic, mechanical and electrical control systems for heating equipment, ventilation…
Owned by: LANDIS & GYR POWERS, INC.
Serial Number: 74318933
QUALITY BUILDING PERFORMANCE
Filed: October 1, 1992
installation, repair and maintenance of pneumatic, mechanical and electrical control systems for heating equipment, ventilation…
Owned by: LANDIS & GYR POWERS, INC.
Serial Number: 74318996
MASTERSET
Filed: September 9, 1993
electronic controllers for the on-site and off-site control and operation of heating, ventilating and air conditioning equipment…
Owned by: LANDIS & GYR POWERS, INC.
Serial Number: 74434410
MASTER SERIES
Filed: September 9, 1993
electronic controllers for the on-site and off-site control and operation of heating, ventilating and air conditioning equipment…
Owned by: LANDIS & GYR POWERS, INC.
Serial Number: 74434422
MASTER SET
Filed: October 18, 1993
electronic controllers for the on-site and off-site control and operation of heating, ventilating and air conditioning equipment…
Owned by: LANDIS & GYR POWERS, INC.
Serial Number: 74449684
MASTER POINT
Filed: August 2, 1994
communication software for use in controlling heating, ventilating and air-conditioning equipment
Owned by: LANDIS & GYR POWERS, INC.
Serial Number: 74556445
