GUN PAKT
Filed: July 2, 1953
PIPING EXPANSION JOINTS
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 71649748
YARWAY
Filed: October 5, 1954
LIQUID LEVEL GAGE ILLUMINATORS, LIQUID LEVEL INDICATORS, LIQUID LEVEL RECORDING INDICATORS, REMOTE ALARMS AND CONTROLS RESPONSIVE…
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 71674359
TECH/SERV
Filed: June 29, 1983
Installation and Maintenance of Steam Traps
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 73432921
DURAHEAT
Filed: December 24, 1984
STEAM TRAPS FOR USE IN THE HEATING, VENTILATING AND AIR CONDITIONING INDUSTRIES
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 73515150
FIG. 999
Filed: January 21, 1988
VALVES OF METAL AND PARTS FOR SUCH VALVES, BEING OTHER THAN MACHINE PARTS
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 73706876
FIG. 100
Filed: January 21, 1988
VALVES OF METAL AND PARTS FOR SUCH VALVES, BEING OTHER THAN MACHINE PARTS
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 73706877
FIG. 99
Filed: January 21, 1988
VALVES OF METAL AND PARTS FOR SUCH VALVES, BEING OTHER THAN MACHINE PARTS
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 73706880
FIG. 992
Filed: January 21, 1988
VALVES OF METAL AND PARTS FOR SUCH VALVES, BEING OTHER THAN MACHINE PARTS
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 73706884
SUPER SEAT
Filed: September 6, 1988
MANUALLY OPERATED BUTTERFLY VALVES MADE OF METAL
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 73750480
ISOLATOR
Filed: July 10, 1989
MANUALLY OPERATED BUTTERFLY VALVES
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 73811832
RAMPART
Filed: January 24, 1990
metal, manually operated double block and bleed valve assemblies
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74022512
K-CAM
Filed: January 24, 1990
infinitely adjustable tripper mechanism for setting switch tripping points for use with a valve actuator
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74022513
ROTOGATE
Filed: September 6, 1990
manually operated metal valves
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74094645
CITADEL
Filed: January 18, 1991
epoxy powder coatings for valves, parts of valves, and valve actuators
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74131609
VALVE-MASTER
Filed: June 25, 1991
computer software for valve sizing and torque analysis and user's manuals sold therewith as a unit
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74179548
MACT ONE
Filed: July 31, 1991
mechanical stem seals for preventing leakage from around stems and shafts used to operate movable valve elements
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74190283
K-NIFE
Filed: January 17, 1992
manually operated gate valves of metal
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74238453
VANESSA
Filed: January 17, 1992
disk valves made of metal
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74238469
BIFFI
Filed: January 17, 1992
actuators; namely, pneumatic and hydraulic actuators
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74238471
K-LON
Filed: January 22, 1992
stuffing boxes for gate valves
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74239383
PRINCE
Filed: August 13, 1992
wafer check valves of metal
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74303809
VALVBUS
Filed: November 20, 1992
data transmission/communication systems comprising hardware and software and electronic interfaces for control and data…
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74333124
KEYBUS
Filed: December 4, 1992
data transmission/communication systems comprising hardware and software and electronic interfaces for control and data…
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74336893
BARRIKADE
Filed: December 9, 1992
high pressure mechanical seal for metal valves employing an injectable sealing material to prevent leakage of hazardous…
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74338334
KEYSTONE MORIN
Filed: October 6, 1993
pneumatic and hydraulic valve actuators
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74444402
K-BALL
Filed: October 6, 1993
metal ball valves
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74444519
THE QUARTER TURN SOLUTION
Filed: October 6, 1993
distributorship services in the field of valves, valve actuators and accessories therefor, distributorship services in the…
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74444551
ISOLATOR
Filed: October 12, 1993
butterfly valves of metal
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74445659
BIFFI
Filed: April 6, 1994
mechanical valve actuators and controls
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74509678
K-NIFE
Filed: April 6, 1994
manually operated gate valves of metal
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74509686
BITRON
Filed: March 23, 1995
manually operated valves of metal, other than parts of machines, and parts therefor
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74652592
ULTRON
Filed: March 23, 1995
manually operated valves of metal, other than parts of machines, and parts therefor
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 74652595
ICON
Filed: January 25, 1996
electric valve actuators
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 75050990
ISO-BARRIER
Filed: April 18, 1997
pilot operated pressure relief valve system for use in a process having a contaminated process fluid wherein the valve critical…
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 75277255
ISO-SENSE
Filed: April 18, 1997
pilot operated pressure relief valves for use in processes where process operating pressures are significantly lower than…
Owned by: KEYSTONE INTERNATIONAL HOLDINGS CORP.
Serial Number: 75277256
