Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11364706 | Cookware having a graphite core | William A. Groll | 2022-06-21 |
| 10717252 | Cooking utensil having a graphite core | William A. Groll | 2020-07-21 |
| 10478012 | Method of making a plurality of bonded blank assemblies | William A. Groll | 2019-11-19 |
| 10081163 | Cooking utensil having a graphite core | William A. Groll | 2018-09-25 |
| 9888808 | Method for making cookware with selectively bonded layers | William A. Groll | 2018-02-13 |
| 9585514 | Heat zone pan | William A. Groll | 2017-03-07 |
| 9498084 | One-piece carbon steel cookware | William A. Groll | 2016-11-22 |
| 9078539 | Cookware with selectively bonded layers | William A. Groll | 2015-07-14 |
| 7097148 | Scissor thrust valve actuator | Kevin George DeWall, Michael E. Nitzel | 2006-08-29 |