Assignee
TSENG HSIEN-CHANG
TW·29 granted patents·69 citations·filing 1993–2022
Top patents by PatentIndex Score
29 records- 0198US8763545B2Method and device for controlling sewing patterns of a sewing machineTSENG HSIEN-CHANG·Filed 2011·Granted Jul 1, 2014·30 cites·26 claims
- 0281US10801142B2Positioning structure for an eccentrically movable tongue seatTSENG HSIEN CHANG·Filed 2017·Granted Oct 13, 2020·2 cites·6 claims
- 0373US10801144B2Hollow pipe joint structure for a sewing machineTSENG HSIEN CHANG·Filed 2018·Granted Oct 13, 2020·1 cites·5 claims
- 0470US9506174B2Differential feeding mechanism for a sewing machineTSENG HSIEN-CHANG·Filed 2014·Granted Nov 29, 2016·2 cites·9 claims
- 0567US8297212B2Travel beginning/end adjusting positioning structure for a sewing machine motor drive mechanismTSENG HSIEN-CHANG·Filed 2011·Granted Oct 30, 2012·2 cites·8 claims
- 0665US7647877B2Thread take-up lever for a sewing machineTSENG HSIEN-CHANG·Filed 2008·Granted Jan 19, 2010·3 cites·8 claims
- 0762US8893632B1Thread hooking device for a hemming device of a sewing machineTSENG HSIEN-CHANG·Filed 2013·Granted Nov 25, 2014·1 cites·9 claims
- 0862US8701577B2Sewing machine with an adjusting structure capable of controlling a swing center of a swing armTSENG HSIEN-CHANG·Filed 2011·Granted Apr 22, 2014·1 cites·14 claims
- 0962US8651037B1Drive structure for driving an upper thread wiper of a sewing machineTSENG HSIEN-CHANG·Filed 2012·Granted Feb 18, 2014·1 cites·20 claims
- 1061US11859324B2Driving clutch device for a sewing machineTSENG HSIEN CHANG·Filed 2022·Granted Jan 2, 2024·0 cites·9 claims
- 1161US10767293B1Sewing-thread pre-stress device for a sewing machineTSENG HSIEN CHANG·Filed 2019·Granted Sep 8, 2020·0 cites·14 claims
- 1259US7617786B1Pressure adjustment structure for a presser foot of a sewing machineTSENG HSIEN-CHANG·Filed 2008·Granted Nov 17, 2009·2 cites·8 claims
- 1358US10260186B2Cutting device for a sewing machineTSENG HSIEN CHANG·Filed 2015·Granted Apr 16, 2019·0 cites·5 claims
- 1455US8979375B2Universal bearingTSENG HSIEN-CHANG·Filed 2014·Granted Mar 17, 2015·0 cites·6 claims
- 1554US11414799B2Feed-dog stabilizing mechanism for a sewing machineTSENG HSIEN CHANG·Filed 2018·Granted Aug 16, 2022·0 cites·9 claims
- 1654US11008687B2Positioning device for an ally movable tongue seatTSENG HSIEN CHANG·Filed 2019·Granted May 18, 2021·0 cites·18 claims
- 1753US9382650B2Cutting device for a sewing machineTSENG HSIEN-CHANG·Filed 2013·Granted Jul 5, 2016·0 cites·4 claims
- 1853USD719985SSewing machineTSENG HSIEN-CHANG·Filed 2013·Granted Dec 23, 2014·7 cites·1 claims
- 1951US8151721B2Thread tensioning device for a sewing machineTSENG HSIEN-CHANG·Filed 2009·Granted Apr 10, 2012·1 cites·17 claims
- 2050US5343821ASewing machine having an accessory boxTSENG HSIEN CHANG·Filed 1993·Granted Sep 6, 1994·5 cites·2 claims
- 2148US10801143B2Knee operated lifting mechanism for a presser foot of a sewing machineTSENG HSIEN CHANG·Filed 2017·Granted Oct 13, 2020·0 cites·20 claims
- 2246US9540751B2Sewing machine with a threading and air supply selecting deviceTSENG HSIEN-CHANG·Filed 2014·Granted Jan 10, 2017·0 cites·18 claims
- 2346US9200394B2Guiding structure for a cloth feeding mechanismTSENG HSIEN-CHANG·Filed 2011·Granted Dec 1, 2015·0 cites·3 claims
- 2445US9016219B2Tension release device for compensating mechanical error of a tension device for a sewing machineTSENG HSIEN-CHANG·Filed 2013·Granted Apr 28, 2015·0 cites·10 claims
- 2544US9150992B2Sewing machine with a drive-selection device capable of positioning an upper thread wiper when in a non-drive positionTSENG HSIEN-CHANG·Filed 2014·Granted Oct 6, 2015·0 cites·5 claims
- 2644US7513201B2Needle holder of multiple needles for sewing machineTSENG HSIEN-CHANG·Filed 2007·Granted Apr 7, 2009·0 cites·8 claims
- 2744USD377357SOverlock sewing machineTSENG HSIEN-CHANG·Filed 1995·Granted Jan 14, 1997·5 cites·1 claims
- 2842US5289790ASewing machine presser foot having means or positioning spring elementTSENG HSIEN CHANG·Filed 1993·Granted Mar 1, 1994·3 cites·5 claims
- 2940USD358597SOverlock sewing machineTSENG HSIEN-CHANG·Filed 1993·Granted May 23, 1995·3 cites·1 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →