Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8974149 | Method of joining two portions of an underwater pipeline for conducting fluids and/or gas | Massimo Fontolan, Roberto Brandi, Luca Michelazzo | 2015-03-10 |
| 5907904 | Method of manufacturing an exhaust muffler with stamp formed internal components | James E. Gerber, Jon W. Harwood | 1999-06-01 |
| 5717173 | Exhaust mufflers with stamp formed internal components and method of manufacture | James E. Gerber, Jon W. Harwood | 1998-02-10 |
| 5252788 | Stamp formed muffler with in-line expansion chamber and arcuately formed effective flow tubes | James W. Emrick | 1993-10-12 |
| 4894987 | Stamp formed muffler and catalytic converter assembly | Jon W. Harwood, Michael Clegg | 1990-01-23 |
| 4806726 | Apparatus for machining a bent elongated member of variable configuration | Jon W. Harwood, Walter G. Moring, III, Peter L. Resuggan | 1989-02-21 |
| 4765437 | Stamp formed muffler with multiple low frequency resonating chambers | Jon W. Harwood, Bennie A. Van Blaircum, Mark S. Kimmet | 1988-08-23 |
| 4760894 | Exhaust muffler with angularly aligned inlets and outlets | Jon W. Harwood, James W. Emrick, Bruce G. Kratzer | 1988-08-02 |
| 4759423 | Tube and chamber construction for an exhaust muffler | Jon W. Harwood, James W. Emrick, Perry A. Main | 1988-07-26 |
| 4656712 | Method for manufacturing a heat shielded exhaust system component | Jon W. Harwood, Michael Clegg, Walter G. Moring, III | 1987-04-14 |
| 4656713 | Method for forming an air gap pipe | Jon W. Harwood, Walter G. Moring, III, Peter L. Resuggan | 1987-04-14 |