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LEO UBBELOHDE

Overview
  • Total Patents
    27
About

LEO UBBELOHDE has a total of 27 patent applications. Its first patent ever was published in 1912. It filed its patents most often in United States, United Kingdom and France. Its main competitors in its focus markets textiles and paper, machines and measurement are UNIROYAL ENGLEBERT TEXTILCORD, DSO TEXTIL and TANAHASHI MITSUHIKO.

Patent filings in countries

World map showing LEO UBBELOHDEs patent filings in countries
# Country Total Patents
#1 United States 15
#2 United Kingdom 11
#3 France 1

Patent filings per year

Chart showing LEO UBBELOHDEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Leo Ubbelohde 15
#2 Ubbelohde Leo 1

Latest patents

Publication Filing date Title
GB893568A Method and apparatus for imparting a false hard-twist to yarns
US3045416A False twisting device
US2956393A Method for crimping swellable filamentary materials
GB793177A Improvements in and relating to apparatus for crimping continuous filaments
GB793176A Method and apparatus for crimping filaments
US2991614A False twisting apparatus for producing crimped filamentary materials
GB783491A Method and apparatus for crimping filaments
GB783492A Improvements in or relating to false twisting devices for producing crimped filaments
GB783493A Improvements in or relating to twisting tubes for crimping filaments
US2863280A Method of crimping filaments
US2284028A Dry spinning process
GB495465A Improvements in the manufacture of yarns
GB477428A A process for the production of crimped artificial textile fibres and like materials
US2091896A Arrangement for testing the viscosity of liquid materials
US2322981A Cellulose product
US2086651A Method and apparatus for making artificial silk and the like
US2155067A Manufacture of improved products of cellulose and cellulose derivatives
US2090560A Process for the manufacture of staple fiber
US2048305A Viscosimeter
US2017640A Treatment of felts for paper machines