Learn more

ZELLWOLLE LEHRSPINNEREI GMBH

Overview
  • Total Patents
    51
About

ZELLWOLLE LEHRSPINNEREI GMBH has a total of 51 patent applications. Its first patent ever was published in 1943. It filed its patents most often in France, Germany and Switzerland. Its main competitors in its focus markets textiles and paper, packaging and shipping and mechanical elements are RONG DEMING, SUEDD SPINDELWERKE ZINSER and SAMPRE SPA.

Patent filings in countries

World map showing ZELLWOLLE LEHRSPINNEREI GMBHs patent filings in countries
# Country Total Patents
#1 France 15
#2 Germany 14
#3 Switzerland 9
#4 United Kingdom 4
#5 Austria 3
#6 Belgium 3
#7 United States 2
#8 Finland 1

Patent filings per year

Chart showing ZELLWOLLE LEHRSPINNEREI GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Quaas Kurt 12
#2 Zellwolle-Lehrspinnerei Gmbh 9
#3 Kurt Quaas 2
#4 Stahlecker Wilhelm 1
#5 Vrancken Jan 1
#6 Bernhard Bisinger 1
#7 Schweizer Alfred 1
#8 Schaefer Hans 1
#9 Quaas K 1
#10 Franz Kerber 1

Latest patents

Publication Filing date Title
US2994086A High-draft drawing mechanism for spinning machines
US2993238A Double belt drawing mechanism for spinning machines
DE915669C Sliver compactors arranged in pairs for drafting systems
DE927194C Drafting system
DE917295C Strappy drafting system
DE918014C Pressure saddle for two-belt drafting systems with top rollers without side guides (twin rollers)
DE929898C Drafting system, especially for worsted ring spinning machines, with twin twin rollers arranged in the drafting field
DE918013C Drafting system with top rollers without side guides (twin rollers)
DE843075C Bearing shell for the lower rolls of drafting or delivery units on spinning or twisting machines
GB687503A Improved textile drawing mechanism
GB684623A Double press-roller unit for drawing mechanisms of spinning machines and the like
DE866771C Drafting system for spinning machines, roving machines, drawing frames, etc.
DE909904C Two-belt drafting system
DE922145C Two-belt drafting system for spinning machines
DE930437C Strap drafting system for spinning machines
DE807372C Strap cage for double strap drafting units
DE852514C Tensioning and / or guide pulley for belt or cable drives or the like, especially on textile machines
DE906913C Two-belt drafting system for spinning machines