OTTO LANDGRAF

Overview

About

OTTO LANDGRAF has a total of 14 patent applications. Its first patent ever was published in 1918. It filed its patents most often in Germany, Switzerland and France. Its main competitors in its focus markets transport, engines, pumps and turbines and materials and metallurgy are WIENAND HENRY LEMONT, ZHENZHI GE and GOL SP K B KOMPLEKSU KORMOUBOR.

Patent filings in countries

#	Technology
#1	Cross-cutting vehicle technologies
#2	Vehicle transmission mounting
#3	Cyclically operating valves
#4	Electrical vehicle propulsion
#5	Internal-combustion piston engines
#6	Working metallic powder
#7	Supplying combustion engines
#8	Cylinders for combustion engines
#9	Wheelchairs and sledges

#	Name	Total Patents
#1	Otto Landgraf	4
#2	Landgraf Otto	2

Publication	Filing date	Title
US2356599A	1940-11-26	Process and apparatus for comminuting liquid substances
US2306449A	1940-10-10	Process and apparatus for the conversion of molten metals or metal alloys
GB163086A	1920-01-27	Improvements in or relating to internal combustion engines for motor wheels
GB162743A	1920-01-27	Improvements in or relating to the valve gear of explosion engines