WALSH ROBERT L has a total of 12 patent applications. Its first patent ever was published in 1920. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets transport, electrical machinery and energy and environmental technology are NOSWORTHY WILLIAM HENRY, FOWLER HARLAN D and HELOU JR ELIE.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 7 | |
#2 | Canada | 4 | |
#3 | Germany | 1 |
# | Industry | |
---|---|---|
#1 | Transport | |
#2 | Electrical machinery and energy | |
#3 | Environmental technology | |
#4 | Surface technology and coating | |
#5 | Civil engineering |
# | Technology | |
---|---|---|
#1 | Aeroplanes | |
#2 | Railway systems | |
#3 | Reduction of greenhouse gas emissions | |
#4 | Electrolytic processes | |
#5 | Machines for making railways | |
#6 | Circuits for supplying electric power | |
#7 | Locomotives | |
#8 | Parachutes | |
#9 | Batteries | |
#10 | Electrical vehicle propulsion |
# | Name | Total Patents |
---|---|---|
#1 | Walsh Robert L | 12 |
Publication | Filing date | Title |
---|---|---|
DE2329692A1 | Transport system with suspended carriages - has overhead slotted rail for guiding reaction engine powered carriages at high speed | |
CA975612A | Transportation system | |
US3194518A | Aircraft panel construction for boundary air control | |
US2960249A | Container framework | |
US2846167A | Aircraft panel construction | |
US1986867A | Airplane propeller | |
US1588214A | Production of gas by electrolysis | |
US1575084A | Electrical auxiliary arrangement | |
US1436616A | Secondary or storage battery | |
CA751797A | Aircraft panel construction for boundary air control | |
CA659960A | Packaging device | |
CA599728A | Aircraft panel construction |