QTRCO INC has a total of 12 patent applications. Its first patent ever was published in 1996. It filed its patents most often in WIPO (World Intellectual Property Organization), Australia and EPO (European Patent Office). Its main competitors in its focus markets mechanical elements, machines and engines, pumps and turbines are WORCESTER CONTROLS UK LTD, MACHF A BIJLENGA NV and EGELIUS GOERAN.
# | Country | Total Patents | |
---|---|---|---|
#1 | WIPO (World Intellectual Property Organization) | 3 | |
#2 | Australia | 2 | |
#3 | EPO (European Patent Office) | 2 | |
#4 | United States | 2 | |
#5 | China | 1 | |
#6 | France | 1 | |
#7 | United Kingdom | 1 |
# | Industry | |
---|---|---|
#1 | Mechanical elements | |
#2 | Machines | |
#3 | Engines, pumps and turbines |
# | Technology | |
---|---|---|
#1 | Servomotors | |
#2 | Venting or aerating devices | |
#3 | Unspecified technologies | |
#4 | Pistons and sealings | |
#5 | Machines | |
#6 | Gearing |
# | Name | Total Patents |
---|---|---|
#1 | Holtgraver Edward | 6 |
#2 | Holtgraver Edward G | 5 |
#3 | Brown C Coy | 2 |
#4 | Howard James R | 2 |
#5 | Howard James | 2 |
#6 | Edward G Holtgraver | 1 |
#7 | James Howard | 1 |
Publication | Filing date | Title |
---|---|---|
US2018135665A1 | System for determining safety margin of an installed driven member | |
US2017314584A1 | Actuator assembly for conducting partial stroke testing | |
WO2016007754A1 | Method and system for controlling actuators | |
GB201502199D0 | Piston rod-piston assembly for use in an actuator | |
WO2013192092A2 | Seal assembly for use in harsh environments | |
WO2014175886A1 | Double-offset butterfly valve | |
AU5023296A | Pneumatic actuator with rack and pinion assembly |