| Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
| Name | Patent Title | Patent Number |
City | Year |
|---|---|---|---|---|
| Rich KETCHAM | Corn stalk strength measuring device | 08215191 | Ames | 2012 |
| Richard S. KETCHAM | optimized piezoelectric resonator-based networks | 05231327 | Ames | 1993 |
| Richard S. KETCHAM | method for optimizing piezoelectric resonator-based networks | 05404628 | Ames | 1995 |
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