HT

Hsien-Chang Tseng

Oracle: 1 patents #8,282 of 14,854Top 60%
📍 Taichung, CO: #1 of 2 inventorsTop 50%
Overall (All Time): #78,506 of 4,157,543Top 2%
40
Patents All Time

Issued Patents All Time

Showing 26–40 of 40 patents

Patent #TitleCo-InventorsDate
7513201 Needle holder of multiple needles for sewing machine 2009-04-07
6079342 Needle support for sewing machine 2000-06-27
5960725 Rotary needle driving mechanism for a sewing machine 1999-10-05
5860376 Thread tension device for sewing machine 1999-01-19
5704302 Looper device having a thread feeding mechanism 1998-01-06
5704303 Sewing machine control mechanism 1998-01-06
5664509 Looper driving assembly for a sewing machine 1997-09-09
5651287 Shaft coupling mechanism for a sewing machine 1997-07-29
D377357 Overlock sewing machine 1997-01-14
5573192 Thread tensioning device for a sewing machine 1996-11-12
5533460 Thread tension device with latch for a sewing machine 1996-07-09
5503094 Needle plate with movable tongues for sewing machine 1996-04-02
D358597 Overlock sewing machine 1995-05-23
5343821 Sewing machine having an accessory box 1994-09-06
5289790 Sewing machine presser foot having means or positioning spring element 1994-03-01