Dudenhoeffer; Stefan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Dudenhoeffer; Stefan.The latest application filed is for "process for purifying 2,5-dichlorophenol".
- Dudenhoeffer; Stefan - Ludwigshafen DE
| Patent | Date |
|---|---|
| Method for the preparation of 1,4-butane diol having an APHA color index of less than 30 Grant 9,975,829 - Pinkos , et al. May 22, 2 | 2018-05-22 |
| Process for purifying 2,5-dichlorophenol Grant 9,701,604 - Klauber , et al. July 11, 2 | 2017-07-11 |
| Process for Purifying 2,5-Dichlorophenol App 20160304425 - KLAUBER; Eric George ; et al. | 2016-10-20 |
| Method For The Preparation Of 1,4-butane Diol Having An Apha Color Index Of Less Than 30 App 20160244387 - Pinkos; Rolf ; et al. | 2016-08-25 |
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