DEMPSTER SYSTEMS INC has a total of 38 patent applications. Its first patent ever was published in 1979. It filed its patents most often in United States, Australia and Canada. Its main competitors in its focus markets environmental technology, transport and mechanical elements are MCNEILUS TRUCK & MFG, TRUCK EQUIPMENT CO INC and MCNEILUS TRUCK & MFG INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 12 | |
#2 | Australia | 6 | |
#3 | Canada | 6 | |
#4 | Finland | 4 | |
#5 | Norway | 3 | |
#6 | Denmark | 2 | |
#7 | EPO (European Patent Office) | 2 | |
#8 | New Zealand | 2 | |
#9 | Sweden | 1 |
# | Industry | |
---|---|---|
#1 | Environmental technology | |
#2 | Transport | |
#3 | Mechanical elements | |
#4 | Machines | |
#5 | Machine tools | |
#6 | Civil engineering |
# | Technology | |
---|---|---|
#1 | Garbage disposal | |
#2 | Load transportation vehicles | |
#3 | Vehicle suspension arrangements | |
#4 | Unspecified technologies | |
#5 | Motor vehicles | |
#6 | Servomotors | |
#7 | Vehicle parts | |
#8 | Nails | |
#9 | Presses | |
#10 | Indexing scheme relating to hinges |
# | Name | Total Patents |
---|---|---|
#1 | Scharf Heino W | 9 |
#2 | Hund Henry M Jr | 7 |
#3 | Hund Jr Henry M | 5 |
#4 | Durant John A | 4 |
#5 | Ratledge R Houston | 4 |
#6 | Sutton Gary | 2 |
#7 | Henderson Donald J | 2 |
#8 | Hund H M | 2 |
#9 | French Henry C | 1 |
#10 | Wynn Charles C | 1 |
Publication | Filing date | Title |
---|---|---|
US4759257A | Power unit particularly for refuse container packer mechanism | |
US4745952A | Structure and method for handling hazardous waste materials | |
US4665649A | Gate operator and latch mechanism for refuse container | |
US4647267A | Fork and arm mechanism for refuse container | |
AU1405983A | Flexibly attaching finder | |
CA1198462A | Vehicle fender attachment and support structure | |
CA1201688A | Swingably supported pusher actuator for refuse transporting vehicle | |
US4460307A | Refuse collection vehicle compaction apparatus | |
US4410207A | Bumper structure for vehicle having tiltable load carrier member | |
US4455118A | Opposed cylinder cable hoist mechanism | |
US4406474A | Vehicle fender attachment and support structure | |
US4349305A | Lifting and dumping apparatus | |
US4396342A | Swingably supported pusher actuator for refuse transporting vehicle | |
US4307541A | Tail-gate operating and locking mechanism | |
US4268053A | Wheel fender assembly | |
CA1102751A | Refuse compaction trailer |