Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8402756 | Equal length Y-collector | David R. Luce, Raymond Morelli, Jr., William W. Brown | 2013-03-26 |
| 7273129 | Muffler with internal heat shield | — | 2007-09-25 |
| 5907904 | Method of manufacturing an exhaust muffler with stamp formed internal components | James E. Gerber, Bruno A. Rosa | 1999-06-01 |
| 5859394 | Muffler with stamped internal plates defining tubes and separating chambers | Christian Seehaus, Stephen E. Jochum | 1999-01-12 |
| 5726398 | Automotive bumper and muffler combination | Wolfgang Zahn | 1998-03-10 |
| 5717173 | Exhaust mufflers with stamp formed internal components and method of manufacture | James E. Gerber, Bruno A. Rosa | 1998-02-10 |
| 5597986 | Stamp formed muffler with nested chambers | Bennie A. Van Blaircum | 1997-01-28 |
| 5563383 | Stamp formed muffler with integral evacuation tube | — | 1996-10-08 |
| 5563385 | Stamp formed muffler with siphon tube | — | 1996-10-08 |
| 5448831 | Method of manufacturing a stamp formed muffler with hermetically sealed laminated outer shell | — | 1995-09-12 |
| 5428194 | Narrow width stamp formed muffler | James W. Emrick | 1995-06-27 |
| 5173577 | Stamp formed muffler with low back pressure | Michael Clegg, Robert A. Kohntopp | 1992-12-22 |
| 5164551 | Stamp formed muffler with compound reinforcement pattern for preventing shell ring | Michael Clegg | 1992-11-17 |
| 5042125 | Apparatus for manufacturing stamp formed mufflers | Wayne A. Karlgaard, Michael Clegg | 1991-08-27 |
| 5004069 | Stamp formed muffler with transverse baffle tube | Bennie A. Van Blaircum, Mark S. Kimmet | 1991-04-02 |
| RE33370 | Stamp formed muffler | — | 1990-10-09 |
| 4928372 | Process for manufacturing stamp formed mufflers | Wayne A. Karlgaard, Michael Clegg | 1990-05-29 |
| 4924968 | Stamp formed muffler with reinforced outer shell | Walter G. Moring, III | 1990-05-15 |
| 4909348 | Stamp formed exhaust muffler with conformal outer shell | Walter G. Moring, III, Paul E. Larkins | 1990-03-20 |
| 4901815 | Stamp formed mufflers | Wayne A. Karlgaard | 1990-02-20 |
| 4894987 | Stamp formed muffler and catalytic converter assembly | Michael Clegg, Bruno A. Rosa | 1990-01-23 |
| 4847965 | Method of manufacturing stamp formed mufflers | Wayne A. Karlgaard | 1989-07-18 |
| 4836330 | Plural chamber stamp formed muffler with single intermediate tube | Mark S. Kimmet | 1989-06-06 |
| 4821840 | Stamp formed exhaust muffler with conformal outer shell | Walter G. Moring, III | 1989-04-18 |
| 4806726 | Apparatus for machining a bent elongated member of variable configuration | Bruno A. Rosa, Walter G. Moring, III, Peter L. Resuggan | 1989-02-21 |