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HENCKELS ZWILLINGSWERK AG

Overview
  • Total Patents
    44
About

HENCKELS ZWILLINGSWERK AG has a total of 44 patent applications. Its first patent ever was published in 1952. It filed its patents most often in Germany, United States and EPO (European Patent Office). Its main competitors in its focus markets machine tools, agriculture and consumer goods are DURHAM DUPLEX RAZOR COMPANY, AUTO STROP PATENTS CORP and IRELAND WILLIAM A.

Patent filings in countries

World map showing HENCKELS ZWILLINGSWERK AGs patent filings in countries

Patent filings per year

Chart showing HENCKELS ZWILLINGSWERK AGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wordtmann Juergen E 4
#2 Koch Ulf 4
#3 Graefe Horst 4
#4 Clotten Wilfried 3
#5 Feige Rainer 3
#6 Karl Rothstein 2
#7 Rothstein Karl 2
#8 Horst Graefe Dipl-Ing 2
#9 Fieber Helmut 2
#10 Boldt Paul 2

Latest patents

Publication Filing date Title
DE19503840A1 Ergonomic holder for knife
EP0520206A1 Knife with the handle tang butt welded to the bolster
EP0429035A2 Knife with sintered bolster
EP0431273A2 Device for sharpening cutters or similar objects
DE3713958A1 PLASTIC HANDLES WITH CUTTING TOOLS
DE3514237A1 Knife with a haft which is made of plastic or the like
DE3232145A1 Scissors
DE2906098A1 Manicure case with intermediate tiers - has friction coupling allowing lid to move independently of tier when required
DE2512188A1 SCISSORS, IN PARTICULAR HOUSEHOLD OR TAILOR'S SCISSORS
DE2512187A1 SCISSORS
DE2331770A1 Relief grinding method for cutting shears - using cup shaped wheel and blade mounting slide
DE2307211A1 SETTING UP ON A LOOP OVEN
GB1315101A Method of manufacturing knives
DE2042070B1 Machine for grinding the inner surfaces of ring-shaped workpieces
DE1962559A1 Grinding machine
DE1953935A1 Machine for grinding scissors, knives or the like.
DE1553711A1 pocket knife
DE1577354B1 Method for successive grinding of the cutting edges on already articulated pliers halves of side cutters, in particular nail nippers
DE1269008B scissors
DE1553708A1 scissors