NAU JOHN B has a total of 11 patent applications. Its first patent ever was published in 1900. It filed its patents most often in United States. Its main competitors in its focus markets materials and metallurgy, thermal processes and basic materials chemistry are AFFIVAL SA, IP ONE PTY LTD and LEMP HERMANN.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 11 |
# | Industry | |
---|---|---|
#1 | Materials and metallurgy | |
#2 | Thermal processes | |
#3 | Basic materials chemistry | |
#4 | Machines | |
#5 | Mechanical elements | |
#6 | Machine tools |
# | Technology | |
---|---|---|
#1 | Pig-iron processing | |
#2 | Unspecified technologies | |
#3 | Venting or aerating devices | |
#4 | Furnaces | |
#5 | Producer gas production | |
#6 | Metal production and refining | |
#7 | Punching metal | |
#8 | Details of furnaces |
# | Name | Total Patents |
---|---|---|
#1 | Nau John B | 11 |
#2 | Battersby Thomas | 1 |
Publication | Filing date | Title |
---|---|---|
US1161404A | Ash removing and poking apparatus for gas-producers. | |
US1033611A | Gas-producer. | |
US991633A | Method of refining molten pig-iron. | |
US990765A | Electric furnace. | |
US984590A | Process of purifying and refining iron. | |
US916477A | Tempering-furnace arrangement. | |
US878306A | Reversing-valve for regenerative furnaces. | |
US805024A | Reversing-valve for regenerative furnaces. | |
US786048A | Process of purifying pig metals. | |
US694569A | Furnace for heating ingots or billets. | |
US674011A | Continuous rod-mill. |