| Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
| Name | Patent Title | Patent Number |
City | Year |
|---|---|---|---|---|
| Ernest Roger STEVENS | method of producing niobium metal | 02937939 | Ames | 1960 |
| Kirk STEVENS | Agricultural vacuum and electrical generator devices, systems, and methods | 11877530 | Ames | 2024 |
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