EHRHARDT & SEHMER AG

Overview

About

EHRHARDT & SEHMER AG has a total of 39 patent applications. Its first patent ever was published in 1921. It filed its patents most often in France, United Kingdom and United States. Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and environmental technology are RYNHART RES & DEV, VON SEGGERN ERNEST A and JUNKERS MASCHINEN UND METALLBA.

Patent filings in countries

#	Technology
#1	Internal-combustion piston engines
#2	Pumps
#3	Supplying combustion engines
#4	Shafts
#5	Climate change mitigation in transportation
#6	Venting or aerating devices
#7	Cylinders for combustion engines
#8	Making screws
#9	Cyclically operating valves
#10	Locomotives

#	Name	Total Patents
#1	Erich Arendt	1
#2	Rudolf Drawe	1

Publication	Filing date	Title
GB239445A	1925-03-11	Improvements relating to the working of two-cylinder four-stroke cycle gas engines
GB244964A	1925-03-11	Improvements relating to scavenging pumps of gas engines
US1541460A	1925-03-09	Gas engine combined with a scavenging pump
US1542677A	1925-03-09	Two-cylinder double-acting four-cycle gas engine