Assignee
AP PARTS MFG
US·32 granted patents·1,006 citations·filing 1988–1997
Top patents by PatentIndex Score
32 records- 0191US4959984APrecision bending apparatusAP PARTS MFG·Filed 1989·Granted Oct 2, 1990·52 cites·11 claims
- 0285US4909348AStamp formed exhaust muffler with conformal outer shellAP PARTS MFG·Filed 1988·Granted Mar 20, 1990·65 cites·18 claims
- 0385US4894987AStamp formed muffler and catalytic converter assemblyAP PARTS MFG·Filed 1988·Granted Jan 23, 1990·55 cites·19 claims
- 0482US4821840AStamp formed exhaust muffler with conformal outer shellAP PARTS MFG·Filed 1988·Granted Apr 18, 1989·52 cites·7 claims
- 0578US5448831AMethod of manufacturing a stamp formed muffler with hermetically sealed laminated outer shellAP PARTS MFG·Filed 1993·Granted Sep 12, 1995·46 cites·8 claims
- 0677US4860853AStamp formed muffler with nonplanar array of tubesAP PARTS MFG·Filed 1988·Granted Aug 29, 1989·44 cites·16 claims
- 0772US5491883AMethod of manufacturing a non-linear composite tubeAP PARTS MFG·Filed 1994·Granted Feb 20, 1996·44 cites·12 claims
- 0872US5390494APipe assembly for efficient light-off of catalytic converterAP PARTS MFG·Filed 1993·Granted Feb 21, 1995·39 cites·25 claims
- 0972US4928372AProcess for manufacturing stamp formed mufflersAP PARTS MFG·Filed 1989·Granted May 29, 1990·34 cites·24 claims
- 1070US5563385AStamp formed muffler with siphon tubeAP PARTS MFG·Filed 1995·Granted Oct 8, 1996·35 cites·15 claims
- 1170US5004069AStamp formed muffler with transverse baffle tubeAP PARTS MFG·Filed 1990·Granted Apr 2, 1991·41 cites·17 claims
- 1269US5726398AAutomotive bumper and muffler combinationAP PARTS MFG·Filed 1997·Granted Mar 10, 1998·32 cites·14 claims
- 1368US5252788AStamp formed muffler with in-line expansion chamber and arcuately formed effective flow tubesAP PARTS MFG·Filed 1992·Granted Oct 12, 1993·38 cites·14 claims
- 1466US4905791ALight weight hybrid exhaust muffler and method of manufactureAP PARTS MFG·Filed 1989·Granted Mar 6, 1990·34 cites·11 claims
- 1565US5859394AMuffler with stamped internal plates defining tubes and separating chambersAP PARTS MFG·Filed 1997·Granted Jan 12, 1999·36 cites·10 claims
- 1664US5597986AStamp formed muffler with nested chambersAP PARTS MFG·Filed 1995·Granted Jan 28, 1997·31 cites·23 claims
- 1764US5173577AStamp formed muffler with low back pressureAP PARTS MFG·Filed 1990·Granted Dec 22, 1992·36 cites·29 claims
- 1863US5164551AStamp formed muffler with compound reinforcement pattern for preventing shell ringAP PARTS MFG·Filed 1990·Granted Nov 17, 1992·30 cites·17 claims
- 1962US4847965AMethod of manufacturing stamp formed mufflersAP PARTS MFG·Filed 1988·Granted Jul 18, 1989·27 cites·8 claims
- 2060US5042125AApparatus for manufacturing stamp formed mufflersAP PARTS MFG·Filed 1990·Granted Aug 27, 1991·29 cites·14 claims
- 2160US4901816ALight weight hybrid exhaust mufflerAP PARTS MFG·Filed 1989·Granted Feb 20, 1990·30 cites·7 claims
- 2255US5280142AHeat shielded exhaust system componentAP PARTS MFG·Filed 1991·Granted Jan 18, 1994·25 cites·13 claims
- 2350US4924968AStamp formed muffler with reinforced outer shellAP PARTS MFG·Filed 1988·Granted May 15, 1990·17 cites·24 claims
- 2448US5816361AExhaust mufflers with stamp formed internal components and method of manufactureAP PARTS MFG·Filed 1997·Granted Oct 6, 1998·17 cites·4 claims
- 2547US5428194ANarrow width stamp formed mufflerAP PARTS MFG·Filed 1993·Granted Jun 27, 1995·19 cites·22 claims
- 2646US5717173AExhaust mufflers with stamp formed internal components and method of manufactureAP PARTS MFG·Filed 1996·Granted Feb 10, 1998·15 cites·7 claims
- 2746US4835851AClamp apparatus for tubular membersAP PARTS MFG·Filed 1988·Granted Jun 6, 1989·15 cites·17 claims
- 2845US5907904AMethod of manufacturing an exhaust muffler with stamp formed internal componentsAP PARTS MFG·Filed 1997·Granted Jun 1, 1999·14 cites·5 claims
- 2944US4958701AStamp formed muffler with pocket-free baffle creaseAP PARTS MFG·Filed 1990·Granted Sep 25, 1990·18 cites·14 claims
- 3042US5327722AStamp formed connector for achieving equal length exhaust pipesAP PARTS MFG·Filed 1993·Granted Jul 12, 1994·16 cites·6 claims
- 3135US5473891AThree-piece stamp formed connector for achieving equal length exhaust pipesAP PARTS MFG·Filed 1994·Granted Dec 12, 1995·15 cites·17 claims
- 3217US4831231AEnd effector for robotic cutting deviceAP PARTS MFG·Filed 1988·Granted May 16, 1989·5 cites·18 claims
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