Assignee
UNION SPECIAL GMBH
DE·72 granted patents·604 citations·filing 1976–1997
Top patents by PatentIndex Score
72 records- 0196US4827856AAlignment device for a sewing machineUNION SPECIAL GMBH·Filed 1987·Granted May 9, 1989·35 cites·7 claims
- 0295US4467734AAutomatic apparatus for conjointly supporting and guiding a tubular workpieceUNION SPECIAL GMBH·Filed 1982·Granted Aug 28, 1984·29 cites·29 claims
- 0391US5251557ASewing machine with an edge guiding device to guide one or more plies of materialUNION SPECIAL GMBH·Filed 1992·Granted Oct 12, 1993·27 cites·12 claims
- 0490US4744319AWorkpiece controlling device for a sewing machineUNION SPECIAL GMBH·Filed 1987·Granted May 17, 1988·19 cites·24 claims
- 0590US4325314AThread control mechanism for sewing machinesUNION SPECIAL GMBH·Filed 1980·Granted Apr 20, 1982·18 cites·8 claims
- 0690US4098209AThread cutter for chainstitch sewing machineUNION SPECIAL GMBH·Filed 1977·Granted Jul 4, 1978·23 cites·14 claims
- 0789US4479447AMethod and apparatus for sewing on a tubular workpiece edgeUNION SPECIAL GMBH·Filed 1982·Granted Oct 30, 1984·29 cites·12 claims
- 0886US4484532AApparatus for blind stitching an S-shaped hemUNION SPECIAL GMBH·Filed 1983·Granted Nov 27, 1984·15 cites·14 claims
- 0983US5188047AProduction of circular seams on a workpieceUNION SPECIAL GMBH·Filed 1990·Granted Feb 23, 1993·33 cites·17 claims
- 1082US4389951AMaterial dispensing means for sewing machinesUNION SPECIAL GMBH·Filed 1981·Granted Jun 28, 1983·13 cites·11 claims
- 1182US4102284AStacker mechanismUNION SPECIAL GMBH·Filed 1977·Granted Jul 25, 1978·13 cites·11 claims
- 1281US4037546ASewing machine apparatus for aligning and sewing pieces of textile fabric or the likeUNION SPECIAL GMBH·Filed 1976·Granted Jul 26, 1977·14 cites·19 claims
- 1380US4512268AMethod and apparatus for tensioning and sewing a tubular workpieceUNION SPECIAL GMBH·Filed 1982·Granted Apr 23, 1985·12 cites·18 claims
- 1477US4480562ASewing machine loop spreading mechanismUNION SPECIAL GMBH·Filed 1983·Granted Nov 6, 1984·12 cites·5 claims
- 1576US4423691AMaterial sensing means for sewing machinesUNION SPECIAL GMBH·Filed 1982·Granted Jan 3, 1984·12 cites·4 claims
- 1674US5813356ASewing machine with trimming deviceUNION SPECIAL GMBH·Filed 1997·Granted Sep 29, 1998·14 cites·11 claims
- 1774US5215020AOptical detector mounted on a circuit board in a sewing machine needle plateUNION SPECIAL GMBH·Filed 1992·Granted Jun 1, 1993·14 cites·9 claims
- 1873US4754722AThread break detector for a sewing machineUNION SPECIAL GMBH·Filed 1987·Granted Jul 5, 1988·10 cites·9 claims
- 1972US5381745AMethod of sewing a seam and a sewing unit thereforUNION SPECIAL GMBH·Filed 1992·Granted Jan 17, 1995·13 cites·12 claims
- 2072US5029541ADevice for the formation and sewing of a hem at an opening in a workpieceUNION SPECIAL GMBH·Filed 1989·Granted Jul 9, 1991·10 cites·15 claims
- 2171US5337689AFeed dog mechanism for sewing machineUNION SPECIAL GMBH·Filed 1993·Granted Aug 16, 1994·13 cites·19 claims
- 2271US4633795ALooper thread control with anti-spin cutting knivesUNION SPECIAL GMBH·Filed 1986·Granted Jan 6, 1987·9 cites·16 claims
- 2369US4777893APresser foot assemblyUNION SPECIAL GMBH·Filed 1987·Granted Oct 18, 1988·9 cites·12 claims
- 2463US5483908ABlowing device on a sewing machine for uncurling the edge of sewing materialUNION SPECIAL GMBH·Filed 1994·Granted Jan 16, 1996·9 cites·8 claims
- 2561US4419948ANeedle bar lubricant sealing deviceUNION SPECIAL GMBH·Filed 1982·Granted Dec 13, 1983·6 cites·7 claims
- 2660US5540162ALooper drive for a chain stitch sewing machineUNION SPECIAL GMBH·Filed 1994·Granted Jul 30, 1996·10 cites·12 claims
- 2760US5222989ATape feed-in device on a sewing machineUNION SPECIAL GMBH·Filed 1992·Granted Jun 29, 1993·9 cites·5 claims
- 2859US4457247AThread control mechanism for sewing machinesUNION SPECIAL GMBH·Filed 1982·Granted Jul 3, 1984·6 cites·8 claims
- 2959US4062310ACooling device for sewing machinesUNION SPECIAL GMBH·Filed 1976·Granted Dec 13, 1977·6 cites·8 claims
- 3058US5178084AMultiple needle chainstitch sewing machineUNION SPECIAL GMBH·Filed 1991·Granted Jan 12, 1993·12 cites·6 claims
- 3156US4970977APortable, single-thread chain stitch, bag closing machine with a movable needle guiding deviceUNION SPECIAL GMBH·Filed 1989·Granted Nov 20, 1990·6 cites·1 claims
- 3256US4475474AMetering device for sewing machinesUNION SPECIAL GMBH·Filed 1982·Granted Oct 9, 1984·5 cites·16 claims
- 3353US5477796ASewing machine with lower feed mechanismUNION SPECIAL GMBH·Filed 1994·Granted Dec 26, 1995·7 cites·7 claims
- 3453US4091756APneumatically driven thread cutterUNION SPECIAL GMBH·Filed 1977·Granted May 30, 1978·5 cites·11 claims
- 3552US5899156AThread control device for a chainstitch sewing machineUNION SPECIAL GMBH·Filed 1997·Granted May 4, 1999·7 cites·14 claims
- 3649US4332209AThread trimming mechanism for sewing machinesUNION SPECIAL GMBH·Filed 1980·Granted Jun 1, 1982·7 cites·10 claims
- 3747US5469798AThread cutting device and method for a chain stitch sewing machineUNION SPECIAL GMBH·Filed 1994·Granted Nov 28, 1995·6 cites·17 claims
- 3847US4809628ADevice to stop lubricant flow on a feed dog carrier of a sewing machineUNION SPECIAL GMBH·Filed 1987·Granted Mar 7, 1989·4 cites·2 claims
- 3947US4372618ASelf-advancing mineral mining installation including tilting machine supportUNION SPECIAL GMBH·Filed 1981·Granted Feb 8, 1983·14 cites·18 claims
- 4045US4777891ACutting device for use with a sewing machineUNION SPECIAL GMBH·Filed 1987·Granted Oct 18, 1988·4 cites·19 claims
- 4145US4526119ASewing machine having a driven feed rollerUNION SPECIAL GMBH·Filed 1983·Granted Jul 2, 1985·3 cites·11 claims
- 4244US4821661AChain stitch sewing machineUNION SPECIAL GMBH·Filed 1988·Granted Apr 18, 1989·6 cites·6 claims
- 4344US4312290AStitch shortening and tacking assembly for blindstitch sewing machinesUNION SPECIAL GMBH·Filed 1980·Granted Jan 26, 1982·3 cites·6 claims
- 4443US5027728AChaining-off device for multiple needle chainstitch sewing machinesUNION SPECIAL GMBH·Filed 1990·Granted Jul 2, 1991·7 cites·4 claims
- 4541US4922843AUsing a variable speed motor in a tape feed device for a sewing machineUNION SPECIAL GMBH·Filed 1988·Granted May 8, 1990·3 cites·8 claims
- 4640US5051678ADrive device for a reciprocating partUNION SPECIAL GMBH·Filed 1990·Granted Sep 24, 1991·3 cites·5 claims
- 4739US5553563ASewing machine with rotary stitch regulatorUNION SPECIAL GMBH·Filed 1995·Granted Sep 10, 1996·3 cites·2 claims
- 4839US5261339AButton-holding device on a button-sewing machineUNION SPECIAL GMBH·Filed 1991·Granted Nov 16, 1993·6 cites·7 claims
- 4939US4594957ASewing machine belt feed with variable pitch drive pulleyUNION SPECIAL GMBH·Filed 1984·Granted Jun 17, 1986·2 cites·2 claims
- 5039US4335666AStrip severing mechanism for sewing machinesUNION SPECIAL GMBH·Filed 1980·Granted Jun 22, 1982·4 cites·8 claims
Showing the top 50 of 72 patent records by PatentIndex Score.
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