KER TRAIN HOLDINGS LTD has a total of 48 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 1995. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets mechanical elements, engines, pumps and turbines and machines are FRITZ KREIS, LIU JEN-CHIH and GIBBS BLACKSTOCK.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 17 | |
#2 | Canada | 9 | |
#3 | EPO (European Patent Office) | 7 | |
#4 | WIPO (World Intellectual Property Organization) | 6 | |
#5 | Australia | 4 | |
#6 | China | 3 | |
#7 | Brazil | 2 |
# | Industry | |
---|---|---|
#1 | Mechanical elements | |
#2 | Engines, pumps and turbines | |
#3 | Machines | |
#4 | Transport |
# | Technology | |
---|---|---|
#1 | Gearing | |
#2 | Clutches and brakes | |
#3 | Unspecified technologies | |
#4 | Wheelchairs and sledges | |
#5 | Internal-combustion piston engines | |
#6 | Unspecified technologies | |
#7 | Rotary-pistons | |
#8 | Pumps | |
#9 | Rotary pistons | |
#10 | Motor vehicles |
# | Name | Total Patents |
---|---|---|
#1 | Kerr John Hugh | 47 |
#2 | Kerr John H | 1 |
Publication | Filing date | Title |
---|---|---|
CN108473158A | Caterpillar regenerates steering differential | |
CN112253648A | One-to-one torque coupling | |
WO2009137933A1 | Concentric v-groove coupling | |
US6691847B2 | Power transfer device | |
WO0023729A2 | All gear infinitely variable transmission | |
US6849023B1 | All gear infinitely variable transmission | |
EP1367295A1 | All gear infinitely variable transmission | |
EP1133640A1 | Rotary pump | |
US6409001B1 | Full-complement multi-directional coupling | |
US6446776B1 | Spiral-type coupling | |
CA2584445A1 | Coplanar reverted gear train loop | |
EP1027547A2 | Planetary transmission | |
CA2209636A1 | Automotive accessory drive pulleys incorporating spiral type one-way clutch | |
US6129189A | Spiral type one-way clutch | |
CA2139788A1 | Automotive accessory drive pulleys incorporating spiral type one-way clutch |