| Search Again | Story County, Iowa Inventory Patents |
Story Co. Home Page |
| Name | Patent Title | Patent Number |
City | Year |
|---|---|---|---|---|
| Chester H. WERKMAN | producing products of fermentation | 01991993 | Ames | 1935 |
| Chester Hamlin WERKMAN | pulping tissues by means fo a volatile base | 01802715 | Ames | 1931 |
| Chester Hamlin WERKMAN | production of diacetyl in butter cultures | 02196239 | Ames | 1940 |
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