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Patent applications and USPTO patent grants for Langenfeld; Roberta M.The latest application filed is for "rolled food product and method of producing".
Patent | Date |
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Waffle sandwich maker and method of preparing a food product with the waffle sandwich maker Grant 10,863,861 - Langenfeld , et al. December 15, 2 | 2020-12-15 |
Rolled Food Product and Method of Producing App 20190069562 - Langenfeld; Roberta M. ;   et al. | 2019-03-07 |
Waffle Sandwich Maker and Method of Preparing a Food Product with the Waffle Sandwich Maker App 20180146823 - Langenfeld; Roberta M ;   et al. | 2018-05-31 |
Waffle plate Grant D806,472 - Langenfeld , et al. January 2, 2 | 2018-01-02 |
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