Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10221806 | Cylindrical engine bore | David Alan Stephenson, Keith Raymond Bartle, David Garrett Coffman | 2019-03-05 |
| 9511467 | Cylindrical surface profile cutting tool and process | David Alan Stephenson, Keith Raymond Bartle, David Garrett Coffman | 2016-12-06 |
| 9162418 | Method of making a barbed surface for receiving a thermal spray coating and the surface made by the method | Keith Raymond Bartle, David Alan Stephenson, James William Perry | 2015-10-20 |
| 9079213 | Method of determining coating uniformity of a coated surface | Benjamin T. Tower, David Alan Stephenson, Keith Raymond Bartle | 2015-07-14 |
| 8726874 | Cylinder bore with selective surface treatment and method of making the same | David Alan Stephenson, Keith Raymond Bartle, David Garrett Coffman | 2014-05-20 |
| 8534256 | Method of making a barbed surface for receiving a thermal spray coating and the surface made by the method | Keith Raymond Bartle, David Alan Stephenson, James William Perry | 2013-09-17 |
| 8230597 | Forming preforms and parts therefrom | Joseph Szuba, Keith Hughes | 2012-07-31 |
| 8215880 | Servo motor for actuating a mandrel while extruding helical teeth | Joseph Szuba, Emilo A. Tonello, Michael Cook | 2012-07-10 |
| 8210016 | Multi-station dies for extruding teeth | Joseph Szuba | 2012-07-03 |
| 8061174 | Preventing voids in extruded teeth or splines | Joseph Szuba | 2011-11-22 |
| 5997286 | Thermal treating apparatus and process | Klaus H. Hemsath, Arvind C. Thekdi, Mark G. Shapona, Ronald Scott Lucas, Claude Melvin Mack | 1999-12-07 |