Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11125439 | Hot surface igniters for cooktops | Bruce C. Sprowl, Jack A. Shindle, Robert Davignon, Brian C. Dougherty | 2021-09-21 |
| 9314985 | Coated pelletizing extrusion dies and method for making the same | Dave Siddle, Irene Spitsberg | 2016-04-19 |
| 9309895 | Closed impeller with a coated vane | Dave Siddle, Irene Spitsberg | 2016-04-12 |
| 8173561 | Inert high hardness material for tool lens production in imaging applications | Elizabeth Ann Peterson, William Roy Huston, Irene Spitsberg, Michael James Verti | 2012-05-08 |