US ELEVATOR CORP has a total of 23 patent applications. Its first patent ever was published in 1969. It filed its patents most often in United States, Germany and Switzerland. Its main competitors in its focus markets packaging and shipping, electrical machinery and energy and civil engineering are NINGBO YONGLIANG ELEVATOR TECH DEV CO LTD, KUM HO ELEVATOR CO LTD and RHEINSTAHL EGGERS KEHRHAHN.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 7 | |
#2 | Germany | 4 | |
#3 | Switzerland | 2 | |
#4 | EPO (European Patent Office) | 2 | |
#5 | France | 2 | |
#6 | Italy | 2 | |
#7 | WIPO (World Intellectual Property Organization) | 2 | |
#8 | Canada | 1 | |
#9 | Spain | 1 |
# | Industry | |
---|---|---|
#1 | Packaging and shipping | |
#2 | Electrical machinery and energy | |
#3 | Civil engineering | |
#4 | Basic communication technologies |
# | Name | Total Patents |
---|---|---|
#1 | Holmes William K | 4 |
#2 | Lind Larry W | 4 |
#3 | Watt Richard E | 4 |
#4 | Mcintyre Richard F | 2 |
#5 | Hoelscher William Robert | 2 |
#6 | Vildibill Alvin James | 1 |
#7 | Parker John H | 1 |
#8 | Hoelscher Willilam R | 1 |
#9 | Mc Intyre R | 1 |
#10 | Hoelscher W | 1 |
Publication | Filing date | Title |
---|---|---|
WO9518893A1 | Process and apparatus for preventing corrosion of a hydraulic elevator cylinder | |
US5374794A | Elevator control valve assembly | |
US5135081A | Elevator position sensing system using coded vertical tape | |
EP0324228A2 | Elevator control switch and position indicator assembly | |
US4750592A | Elevator position reading sensor system | |
US4630423A | Suspended-ceiling framework assembly | |
US3762512A | Elevator rail grab safety apparatus | |
US3749203A | Elevator floor leveling system | |
US3609639A | Underwater electrical connector apparatus |