ALEXANDER GRAF

Overview

About

ALEXANDER GRAF has a total of 27 patent applications. Its first patent ever was published in 1906. It filed its patents most often in Germany, France and United Kingdom. Its main competitors in its focus markets electrical machinery and energy, thermal processes and chemical engineering are EATON IND MFG GMBH, MARSHALL SANDERS COMPANY and L APP ELECTR SIMPLEX.

Patent filings in countries

#	Industry
#1	Electrical machinery and energy
#2	Thermal processes
#3	Chemical engineering
#4	Textiles and paper

#	Technology
#1	Electric switches
#2	Heat-exchanger without contact
#3	Installation of electric cables
#4	Electrically-conductive connections
#5	Separation
#6	Form printing surfaces
#7	Spark gaps and corona devices

#	Name	Total Patents
#1	Graf Alexander	4
#2	Alexander Graf	4

Publication	Filing date	Title
GB431601A	1934-04-18	Process and apparatus for the production of finished stereo plates for printing presses
GB158224A	1920-10-23	Improvements in and relating to switches for electric installations
GB143182A	1919-12-03	Improvements in and relating to junction boxes and the like for electric circuits
US1392324A	1919-11-28	Switch for electric circuits
US1414874A	1919-11-28	Junction box for electric supply mains