Learn more

DOERKEN & MANKEL KG

Overview
  • Total Patents
    131
About

DOERKEN & MANKEL KG has a total of 131 patent applications. Its first patent ever was published in 1950. It filed its patents most often in Germany, France and Austria. Its main competitors in its focus markets civil engineering and machines are NAKAO SEISAKUSHO KK, ACKERMAN BLAESSER FEZZEY INC and JEBRON LTD.

Patent filings in countries

World map showing DOERKEN & MANKEL KGs patent filings in countries
# Country Total Patents
#1 Germany 53
#2 France 24
#3 Austria 14
#4 United States 14
#5 United Kingdom 11
#6 Switzerland 10
#7 Denmark 3
#8 Belgium 1
#9 Sweden 1

Patent filings per year

Chart showing DOERKEN & MANKEL KGs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Cleff Herbert 16
#2 Jentsch Dietrich 15
#3 Heinz Bomm 9
#4 Tillmann Horst 7
#5 Herbert Cleff 4
#6 Klaus Berghaus 4
#7 Bomm Heinz 3
#8 Jentsch D 1
#9 Mankel Rudolf 1
#10 Berghaus Claus 1

Latest patents

Publication Filing date Title
US3726043A Arrangement for closing doors and the like
US3651538A Pivotable support for a door or analogous swingable element
GB1274153A Door closer connecting means
GB1270355A Automatic door closers
US3701180A Door closer
US3668737A Automatic door closer
GB1214290A Automatic door closers
US3675270A Closing device for doors and analogous structural elements
GB1211319A Automatic door closers
GB1210639A Automatic door closers
GB1211000A Automatic door closers
GB1242683A A hinge arrangement for a swing door
GB1221449A Automatic door closers
GB1105982A Door holder
GB1103966A Automatic door closer
FR1383699A Automatic door closer
DE1244615B Spring attachment tape, especially for fire doors
DE1244614B Spring attachment tape, especially for fire doors
US3098259A Automatic door closer
DE1277701B Automatic door closer, especially floor door closer