ERNST EMIL FREYTAG

Overview

About

ERNST EMIL FREYTAG has a total of 21 patent applications. Its first patent ever was published in 1906. It filed its patents most often in Germany, United States and United Kingdom. Its main competitors in its focus markets transport, engines, pumps and turbines and agriculture are JOHN FOWLER & CO LEEDS LTD, HEINRICH LANZ and FUJI ROBIN KK.

Patent filings in countries

#	Technology
#1	Crop agriculture
#2	Internal-combustion piston engines
#3	Vehicle wheels
#4	Climate change mitigation in transportation
#5	Lubricating of machines
#6	Motor vehicles
#7	Cyclically operating valves
#8	Vehicle transmission mounting
#9	Lubricating
#10	Aeroplanes

#	Name	Total Patents
#1	Baumann Ernst Karl Alexander	2
#2	Neukirch Hubert Valentin	1

Publication	Filing date	Title
DE377061C	1921-03-25	Control device for internal combustion engines
DE347263C	1919-04-17	Piston pump with a piston carrier rotating in a housing
DE366647C	1919-02-22	Explosion engine with cylinders inclined to one another
GB191023256A	1910-10-07	Improvements in Mechanical Stokers for Furnaces.
US990185A	1910-08-22	Gas-turbine.
US985126A	1910-06-25	Aeroplane.
US866955A	1906-12-26	Acetylene-gas generator.