Assignee
PORTER SEWING MACHINES INC
US·18 granted patents·358 citations·filing 1984–1997
Top patents by PatentIndex Score
18 records- 0197US5586511AMethod and apparatus for assembly of pillow-top mattress coversPORTER SEWING MACHINES INC·Filed 1995·Granted Dec 24, 1996·42 cites·8 claims
- 0295US5529004AMethod and apparatus for manipulating and sewing flexible fabricsPORTER SEWING MACHINES INC·Filed 1994·Granted Jun 25, 1996·32 cites·13 claims
- 0395US4825787AMethod and apparatus for guiding fabric to a sewing machinePORTER SEWING MACHINES INC·Filed 1987·Granted May 2, 1989·37 cites·27 claims
- 0494US5782190AApparatus for assembly of pillow-top mattress coversPORTER SEWING MACHINES INC·Filed 1996·Granted Jul 21, 1998·30 cites·11 claims
- 0590US4546716ADouble overlock seamerPORTER SEWING MACHINES INC·Filed 1984·Granted Oct 15, 1985·18 cites·24 claims
- 0689US5309854AHigh lift sewing machinePORTER SEWING MACHINES INC·Filed 1992·Granted May 10, 1994·22 cites·7 claims
- 0787US5520129AMethod and apparatus for join and sew applicationPORTER SEWING MACHINES INC·Filed 1994·Granted May 28, 1996·16 cites·21 claims
- 0885US4730566AAutomatic pocket label stitcherPORTER SEWING MACHINES INC·Filed 1984·Granted Mar 15, 1988·15 cites·14 claims
- 0983US6000352AMethod and apparatus for sewing fabric panelsPORTER SEWING MACHINES INC·Filed 1997·Granted Dec 14, 1999·21 cites·31 claims
- 1082US5738029AMethod and apparatus for sewing handles on side panels on a box springPORTER SEWING MACHINES INC·Filed 1996·Granted Apr 14, 1998·18 cites·5 claims
- 1182US5501164AApparatus for assembly of pillow-top mattress coversPORTER SEWING MACHINES INC·Filed 1995·Granted Mar 26, 1996·14 cites·6 claims
- 1281US5526761AMethod and apparatus for closing mattressesPORTER SEWING MACHINES INC·Filed 1994·Granted Jun 18, 1996·15 cites·14 claims
- 1379US5927221AMethod and apparatus for join and sew applicationPORTER SEWING MACHINES INC·Filed 1996·Granted Jul 27, 1999·15 cites·19 claims
- 1475US5908004AMethod and apparatus for manipulating and sewing flexible fabricsPORTER SEWING MACHINES INC·Filed 1995·Granted Jun 1, 1999·22 cites·21 claims
- 1575US5678502AVariable walking foot apparatus for a sewing machine for mattressesPORTER SEWING MACHINES INC·Filed 1996·Granted Oct 21, 1997·13 cites·4 claims
- 1674US5664508AMethod and apparatus for forming the side panel of a mattress sackPORTER SEWING MACHINES INC·Filed 1996·Granted Sep 9, 1997·13 cites·9 claims
- 1773US5020460AMethod and apparatus for aligning a fabric ply in a sewing machinePORTER SEWING MACHINES INC·Filed 1989·Granted Jun 4, 1991·10 cites·39 claims
- 1848US5097777AMethod and apparatus for preloading material to be sewn into a sewing machine and for compensating for uneven lengths of such materialsPORTER SEWING MACHINES INC·Filed 1990·Granted Mar 24, 1992·5 cites·20 claims
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