RIGGERS MFG CO has a total of 19 patent applications. Its first patent ever was published in 1973. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets transport, packaging and shipping and mechanical elements are BRITISH CRANE & EXCAVATOR CORP, MANITOWOC CRANE CO INC and MARINE TRAVELIFT INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 7 | |
#2 | Canada | 4 | |
#3 | United Kingdom | 3 | |
#4 | Germany | 2 | |
#5 | France | 2 | |
#6 | Japan | 1 |
# | Industry | |
---|---|---|
#1 | Transport | |
#2 | Packaging and shipping | |
#3 | Mechanical elements |
# | Technology | |
---|---|---|
#1 | Cranes | |
#2 | Motor vehicles | |
#3 | Vehicle transmission mounting | |
#4 | Clutches and brakes |
# | Name | Total Patents |
---|---|---|
#1 | Lampson Neil F | 7 |
#2 | Trask Walter Haywood | 3 |
#3 | Trask Walter H | 2 |
#4 | Engler Edgar D | 1 |
#5 | Trask W | 1 |
#6 | Niiru Efu Ramupuson | 1 |
#7 | Lorenz Gary V | 1 |
#8 | Dixon J | 1 |
#9 | Lampson N | 1 |
Publication | Filing date | Title |
---|---|---|
US4508232A | Counterbalanced crane structure | |
US4381839A | Gantry having adjustable side supports | |
US4647116A | Crawler suspension system | |
US4349115A | Crane | |
US4243148A | Counterbalanced tower crane | |
CA1081662A | Counterbalanced tower crane | |
DE2438439A1 | Slewing jib crane - has tailweight unit with travel gear slewing superstructure with main jib and gantry | |
CA1006124A | Counterbalanced crane structure | |
GB1466686A | Counter-balanced crane structure | |
US3836010A | Counter-balanced crane structure | |
US3834182A | Floating ring coupler |