| Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
| Name | Patent Title | Patent Number |
City | Year |
|---|---|---|---|---|
| Charles L. DEPENNING | butterfly valve | 06793197 | Nevada | 2004 |
| Charles Lawrence DEPENNING | noise abatement device and method for air-cooled condensing systems | 07055324 | Nevada | 2006 |
| Charles Lawrence DEPENNING | noise level reduction of sparger assemblies | 07584822 | Nevada | 2009 |
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