Assignee
LUWA AG ZELLWEGER
CH·56 granted patents·548 citations·filing 1992–2001
Top patents by PatentIndex Score
56 records- 0196US6343508B1Method for representing properties of elongated textile test specimensLUWA AG ZELLWEGER·Filed 1998·Granted Feb 5, 2002·34 cites·14 claims
- 0289US6244030B1Process and device for monitoring the quality of yarnsLUWA AG ZELLWEGER·Filed 1997·Granted Jun 12, 2001·27 cites·5 claims
- 0389US5834639AMethod and apparatus for determining causes of faults in yarns, rovings and sliversLUWA AG ZELLWEGER·Filed 1995·Granted Nov 10, 1998·19 cites·9 claims
- 0485US6112508ADevice for monitoring yarns on ring spinning machinesLUWA AG ZELLWEGER·Filed 1998·Granted Sep 5, 2000·13 cites·16 claims
- 0584US5428870AMethod and device for regulating the draw of a drawing unitLUWA AG ZELLWEGER·Filed 1993·Granted Jul 4, 1995·18 cites·15 claims
- 0681US5768938AYarn sensorLUWA AG ZELLWEGER·Filed 1996·Granted Jun 23, 1998·31 cites·18 claims
- 0778US6374152B1Method and device for clearing yarnsLUWA AG ZELLWEGER·Filed 1998·Granted Apr 16, 2002·35 cites·13 claims
- 0870US5499794AProcess and device for detecting foreign substances in a textile test material using an alternating light and dark backgroundLUWA AG ZELLWEGER·Filed 1994·Granted Mar 19, 1996·34 cites·17 claims
- 0969US5587695AMeasuring transformer for solid-state electricity metersLUWA AG ZELLWEGER·Filed 1994·Granted Dec 24, 1996·32 cites·23 claims
- 1067US5671061AMethod and apparatus for assessing the effect of yarn faults on woven or knitted fabricsLUWA AG ZELLWEGER·Filed 1995·Granted Sep 23, 1997·18 cites·36 claims
- 1166US6683687B1Method and apparatus for assessing the effect of yarn faults on woven or knitted fabricsLUWA AG ZELLWEGER·Filed 1996·Granted Jan 27, 2004·8 cites·18 claims
- 1266US6422072B1Device for measuring properties of a longitudinally moved specimen such as yarnLUWA AG ZELLWEGER·Filed 1999·Granted Jul 23, 2002·9 cites·5 claims
- 1366US5636803AApparatus for checking the winding quality of yarn bobbins and use of the apparatus on a winding or spinning machineLUWA AG ZELLWEGER·Filed 1994·Granted Jun 10, 1997·17 cites·14 claims
- 1466US5511371ASystem for increasing the production of spinning machinesLUWA AG ZELLWEGER·Filed 1994·Granted Apr 30, 1996·8 cites·7 claims
- 1560US6346819B1Method and device for determining proportions of solid matter in a test materialLUWA AG ZELLWEGER·Filed 1998·Granted Feb 12, 2002·27 cites·24 claims
- 1658US6219135B1Device for optically recording, digitally, a parameter on a longitudinally moved thread-type materialLUWA AG ZELLWEGER·Filed 1997·Granted Apr 17, 2001·20 cites·12 claims
- 1756US6058570AInflow sensor for a drawing equipmentLUWA AG ZELLWEGER·Filed 1997·Granted May 9, 2000·5 cites·3 claims
- 1856US5654554AMethod and apparatus for the recording of properties on elongate bodiesLUWA AG ZELLWEGER·Filed 1995·Granted Aug 5, 1997·20 cites·9 claims
- 1955USD412290SYarn testing apparatusLUWA AG ZELLWEGER·Filed 1997·Granted Jul 27, 1999·7 cites·1 claims
- 2053US5497335ASystem for creating a fault diagnosis on production machines and application of the system on textile machinesLUWA AG ZELLWEGER·Filed 1992·Granted Mar 5, 1996·19 cites·15 claims
- 2150US5697247AApparatus for measuring the thickness and/or irregularity of sliversLUWA AG ZELLWEGER·Filed 1996·Granted Dec 16, 1997·5 cites·1 claims
- 2247US5521395AMethod and apparatus for determining the structure of yarns in the region of their surfaceLUWA AG ZELLWEGER·Filed 1994·Granted May 28, 1996·7 cites·9 claims
- 2346USD412291SYarn testing apparatusLUWA AG ZELLWEGER·Filed 1997·Granted Jul 27, 1999·4 cites·1 claims
- 2446US5870890AMethod and apparatus for detecting the mass of fiber material in a spinning machineLUWA AG ZELLWEGER·Filed 1997·Granted Feb 16, 1999·3 cites·9 claims
- 2545US5926267AProcess and device for detecting extraneous substances and extraneous fibers in a fibrous compositeLUWA AG ZELLWEGER·Filed 1997·Granted Jul 20, 1999·7 cites·8 claims
- 2644US5437182AMethod and device for determining strength properties of the warp threads of a warpLUWA AG ZELLWEGER·Filed 1993·Granted Aug 1, 1995·14 cites·21 claims
- 2743US6510734B1Method of assessing the effects of yarn defects on textile fabricsLUWA AG ZELLWEGER·Filed 1997·Granted Jan 28, 2003·10 cites·8 claims
- 2842US5596901AMethod for the absolute measurement of the tearing strength of fibresLUWA AG ZELLWEGER·Filed 1995·Granted Jan 28, 1997·12 cites·10 claims
- 2940US6032335AApparatus for drawing a fibrous strand into an element of a textile machineLUWA AG ZELLWEGER·Filed 1998·Granted Mar 7, 2000·2 cites·17 claims
- 3038US6553826B1Process and device for monitoring the quality of textile stripsLUWA AG ZELLWEGER·Filed 2000·Granted Apr 29, 2003·0 cites·9 claims
- 3138US6499345B1Measuring device for thread-like test samplesLUWA AG ZELLWEGER·Filed 1999·Granted Dec 31, 2002·6 cites·12 claims
- 3238US5424723AApparatus and methods for checking the presence of yarns on a textile machineLUWA AG ZELLWEGER·Filed 1993·Granted Jun 13, 1995·6 cites·18 claims
- 3336US6601521B2Traveling cleaner for textile manufacturing plantLUWA AG ZELLWEGER·Filed 2001·Granted Aug 5, 2003·0 cites·16 claims
- 3436US6072319ADevice for measuring properties of a textile productLUWA AG ZELLWEGER·Filed 1998·Granted Jun 6, 2000·11 cites·8 claims
- 3535US6430995B1Method and device for assessing yarn qualityLUWA AG ZELLWEGER·Filed 1997·Granted Aug 13, 2002·1 cites·7 claims
- 3635US6199289B1Device for measuring the thickness and/or unevenness of wadding or non-wovensLUWA AG ZELLWEGER·Filed 1997·Granted Mar 13, 2001·3 cites·10 claims
- 3735US5709011AApparatus for determining irregularities in the mass of a sliverLUWA AG ZELLWEGER·Filed 1996·Granted Jan 20, 1998·2 cites·9 claims
- 3835US5501100ADevice for measuring the mass of fiber sliversLUWA AG ZELLWEGER·Filed 1994·Granted Mar 26, 1996·7 cites·14 claims
- 3933US6155037ARevolving body for inserting false twist into yarn or the likeLUWA AG ZELLWEGER·Filed 1998·Granted Dec 5, 2000·4 cites·21 claims
- 4032US5428878AThread or yarn monitor for textile machinesLUWA AG ZELLWEGER·Filed 1994·Granted Jul 4, 1995·2 cites·11 claims
- 4131US6243166B1Process and device for recognition of foreign bodies in fibre of predominantly textile fibresLUWA AG ZELLWEGER·Filed 1997·Granted Jun 5, 2001·3 cites·16 claims
- 4231US6062074AMethod for detecting periodic defects in a test material moved longitudinallyLUWA AG ZELLWEGER·Filed 1998·Granted May 16, 2000·1 cites·8 claims
- 4331US6061127ADevice for registering parameters of an elongated test materialLUWA AG ZELLWEGER·Filed 1998·Granted May 9, 2000·2 cites·14 claims
- 4431US5775085AMethod and device for preventing mass fluctuations in fiber materialLUWA AG ZELLWEGER·Filed 1996·Granted Jul 7, 1998·1 cites·5 claims
- 4530US6381941B1Capacitor charged yarn cutting apparatusLUWA AG ZELLWEGER·Filed 1999·Granted May 7, 2002·2 cites·2 claims
- 4629US5426824AMethod for producing nonwoven webs from unordered fibresLUWA AG ZELLWEGER·Filed 1992·Granted Jun 27, 1995·4 cites·26 claims
- 4728US5530368ACapacitive sensor for detecting fluctuations in the mass and/or diameter of elongated textile test materialLUWA AG ZELLWEGER·Filed 1993·Granted Jun 25, 1996·10 cites·7 claims
- 4827US6065333ADevice for monitoring a moving yarnLUWA AG ZELLWEGER·Filed 1996·Granted May 23, 2000·3 cites·8 claims
- 4926US5499546AMethod of measuring the mass of fiber sliversLUWA AG ZELLWEGER·Filed 1995·Granted Mar 19, 1996·1 cites·6 claims
- 5024US5872788AMethod and device for the transmission of dataLUWA AG ZELLWEGER·Filed 1995·Granted Feb 16, 1999·3 cites·7 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when LUWA AG ZELLWEGER files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →