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KELLER MECHANICAL ENG

Overview
  • Total Patents
    47
About

KELLER MECHANICAL ENG has a total of 47 patent applications. Its first patent ever was published in 1920. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets machine tools, machines and electrical machinery and energy are HELIS SA, SCHARMANN GMBH & CO and WHITE JOSEPH P.

Patent filings in countries

World map showing KELLER MECHANICAL ENGs patent filings in countries
# Country Total Patents
#1 United States 26
#2 Canada 8
#3 Germany 5
#4 France 4
#5 United Kingdom 3
#6 Ireland 1

Patent filings per year

Chart showing KELLER MECHANICAL ENGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Shaw John C 29
#2 Shaw Robert D 21
#3 Keller Joseph F 5
#4 Bachmann Alwin B 2

Latest patents

Publication Filing date Title
US1815594A Screw driver screw holding device
IE10958L Copying machine (metal cutting)
DE617600C Machine tool with rotating tool and independent automatic feed of the workpiece, in which the feed is either continuous or interrupted via a magnetic coupling
DE525134C Electric finger control for turning bars
US1772431A Electric tracer control for lathes
DE536867C Finger fingers for electrically controlled copy milling machines or the like.
US1785395A Zeroizing scale for work-positioning mechanism for machine tools
US1789116A Magnetic-clutch gear-case unit
US1694022A Tracer point
US1717326A Power-limiting relay for machine-tool feeds
US1683418A Terminal for conductors
US1796125A Cam-grinding machine
US1719813A Cam-cutting machine
US1719812A Template generator
US1757929A Work-positioning mechanism for machine tools
US1632749A Bourdon-tube spring
US1636670A Method of making segmental laminated gears
US1711290A Electric-tracer control for lathes
US1668518A Contouring tracer
US1683581A Electrical operation and control of machine tools