DEMPCO has a total of 19 patent applications. Its first patent ever was published in 1963. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets mechanical elements, machines and transport are NAGAHORI INDUSTRY CO LTD, CANALCRAB SA and DART ENGINEERING AG.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 10 | |
#2 | Canada | 4 | |
#3 | United Kingdom | 3 | |
#4 | Germany | 2 |
# | Industry | |
---|---|---|
#1 | Mechanical elements | |
#2 | Machines | |
#3 | Transport | |
#4 | Consumer goods | |
#5 | Civil engineering |
# | Technology | |
---|---|---|
#1 | Unspecified technologies | |
#2 | Pipes | |
#3 | Venting or aerating devices | |
#4 | Vehicle connections | |
#5 | Locks | |
#6 | Hand carts | |
#7 | Goods for writing upon | |
#8 | Unspecified technologies | |
#9 | Nails | |
#10 | Wheelchairs and sledges |
# | Name | Total Patents |
---|---|---|
#1 | Vik Albam M | 8 |
#2 | Vik A | 4 |
#3 | Vik Albam Mody | 1 |
#4 | Murphy Vincent H | 1 |
#5 | Dempsey Norman E | 1 |
#6 | Murphy V | 1 |
Publication | Filing date | Title |
---|---|---|
US4009729A | Hydraulic coupler | |
US3874411A | Hydraulic coupler attachment | |
CA992344A | Lock for trailer hitch coupler | |
CA992343A | Lock for trailer hitch coupler nut | |
US3796074A | Lock for trailer hitch coupler nut | |
US3770299A | Lock for trailer hitch coupler | |
US3730221A | Hydraulic coupler with pressure relief mechanism | |
US3710823A | Hydraulic coupler with cam actuator | |
US3680591A | Unique hydraulic coupler | |
US3675939A | Snowmobile ski and blade construction | |
US3501189A | Safety rear door lock for automobiles | |
US3241242A | Drafting instrument |