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THEYSOHN FRIEDRICH FA

Overview
  • Total Patents
    159
About

THEYSOHN FRIEDRICH FA has a total of 159 patent applications. Its first patent ever was published in 1972. It filed its patents most often in Germany, EPO (European Patent Office) and United States. Its main competitors in its focus markets machines, packaging and shipping and measurement are TOCHISEN KASEI KOGYO KK, GOJARA and SUZHOU TONGDA MACHINERY CO LTD.

Patent filings per year

Chart showing THEYSOHN FRIEDRICH FAs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Topf Siegfried 15
#2 Gienapp Horst 12
#3 Buenger Karl-Heinz 12
#4 Theysohn Friedrich 12
#5 Nogossek Alfred 12
#6 Stiegen Helmut 12
#7 Krueger Ernst Dr 11
#8 Pichler Ernst 9
#9 Schulze Torsten 9
#10 Theysohn Friedrich Ing Grad 9

Latest patents

Publication Filing date Title
DE19937534A1 Plastic box
DE19935520A1 Injection moulding tool for producing, e.g. plastic crates has surfaces of injector and mould sealing section which form part of moulding chamber made of aluminum or aluminum alloy.
DE19932515A1 Open-sided plastic box particularly suitable for transport and display of fruit and vegetables, has inverted U-shaped bar-handles incorporating gas-injection molded cavity
WO9926040A1 Device for detecting errors and/or measuring wall thickness in continuous strips or tubes made of plastic using ultrasonic signals
DE19841064A1 Scanner in a wall thickness measuring device for pipes with ultrasonic sensors
DE19747637A1 Device for fault detection in continuous strips, profiles or pipes made of plastic with ultrasonic signals
DE19746966C1 Testing device for extruded long profiles in particular
DE19746969A1 Device for mass flow measurement of free-flowing material with a scale
DE19741586C1 Ultrasonic measuring device with transmitter and receiver for locating the geometric position of the boundary between a first and a second substance from a reference location
DE19704866A1 Compounding machine for plasticisable materials
DE19706134A1 Mixing and kneading component of a plastics processing machine
DE19647197A1 Implement for cleaning smooth surfaces
DE19619841A1 Withdrawal tool for worm screw fixed on shaft
DE19615280A1 Injection moulding process for characterising pallets, vehicle parts, etc.
DE19613494A1 Identification for moulded box used for carriage of bottles or bags
DE19528222A1 Collapsible spool for winding of long length product - two sections of each shell by one end pivot on respective disc around pivot fitted on them, and in working position supported on projection pointing into interior of spool
DE19525000C1 Injection mold for the production of a box made of plastic
EP0686826A1 Device for the contact-free thickness determination of moving elongated products, in particular flat products
DE19519825A1 Device for cleaning smooth surfaces
DE19515910A1 Trap for musk rats