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LEIFELD & CO

Overview
  • Total Patents
    64
About

LEIFELD & CO has a total of 64 patent applications. Its first patent ever was published in 1968. It filed its patents most often in Germany, United Kingdom and France. Its main competitors in its focus markets machine tools, machines and mechanical elements are ADVAL TECH HOLDING AG, AQUAFORM INC and SCHULER HYDROFORMING GMBH & CO.

Patent filings in countries

World map showing LEIFELD & COs patent filings in countries

Patent filings per year

Chart showing LEIFELD & COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Schroeder Paul 10
#2 Hinze Dietrich 7
#3 Pollkoetter Guenter 6
#4 Bichel Joachim 6
#5 Muehlenhoff Heinrich 4
#6 Schroder P 3
#7 Rolf Bernhard 3
#8 Pollkotter G 2
#9 Leifeld Theodor F 2
#10 Sander Franz 2

Latest patents

Publication Filing date Title
DE3917925A1 METHOD FOR PRODUCING AN ASYMMETRICAL PULLEY FROM A METAL ROTOR
DE3711927C1 Method for the production of metal hollow bodies with profiles running in the axial direction on their outer circumference, especially teeth, and an apparatus for carrying out the method
DE3532213A1 Method of operating a numerically controlled pressing machine as well as pressing machine for implementing this method
DE3518491A1 Method and apparatus for adjusting the forming tool of a metal spinning machine
DE3511397A1 Method for setting the position of forming rollers on a stretch-spinning and/or spinning machine
EP0062685A1 Method of processing a numerically supervised and controlled spinning machine, and spinning machine for carrying out this method
EP0042450A1 Process for producing silencer cases with a folded longitudinal seam and apparatus for carrying out this process
DE2549516A1 Multiple seam pressing machine for barrels - has columns on machine bed for adjustably ribbed rotary seam press drum tool
DE2546088A1 Workpiece finishing machine with offset tool post slide - has turntable with multiple tool rotating head and cross slide for tool approach
DE2517971A1 Gas bottle making method - includes forming bottle blank while hot, under pressure, in special machine
US3962896A Method of producing V-belt pulleys and spinning lathe for carrying out such method
DE2431935A1 Ball bearing with pressed metal races - has races formed by splitting race edge and rolling to final size
US3926025A Method of producing special wheel rims
CA1016346A Method and apparatus for the production of cylindrical hollow bodies
DE2341974A1 Bending arrangement for pipes - pipes are filled with water or liquid which can be frozen before processing
US3823591A Method and apparatus for producing dish-shaped articles
DE2240880A1 Extruded plastic tubular products - with rate of extrusion calculated from extrusion volume and tube wall thickness
DE2211586A1 Loading horizontal presses - with symmetrical rounds so as to eliminate manual labour and speed operation
DE2211307A1 Fabricating extruded plastic tubing - with close thickness control
DE2207308A1 Antifriction bearing rings and discs - made by non-cutting shaping from sheet metal