Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4725675 | Water-soluble phenyl-azo-naphthyl compounds, suitable as dyestuffs, containing a chloro-triazinylamino group and a fiber-reactive group of the vinylsulfone type | Fritz Meininger | 1988-02-16 |
| 4649193 | Water-soluble dyestuffs containing fibre-reactive groups of the vinylsulfone series and the fluoro-s-triazinyl-amino series | Fritz Meininger, by Ursula Otten, heir, by Anna G. Rudolph nee Otten, heir | 1987-03-10 |
| 4622390 | Water-soluble disazo compounds containing an amino naphthol-disulfonic acid moiety as a coupling component and fibre-reactive groups | Fritz Meininger, Ernst Hoyer, by Ursula Otten, heir, by Anna G. Rudolph nee Otten, heir, Rudolf Fass | 1986-11-11 |
| 4515598 | Process for dyeing and printing fiber materials containing hydroxy and/or carbonamide groups with reactive dye containing both vinyl sulphonyl and fluoro-triazinyl groups | Fritz Meininger, by Ursula Otten, heir, by Anna G. Rudolph nee Otten, heir | 1985-05-07 |
| 4442288 | Anthraquinone compounds | Fritz Meininger, by Ursla Otten, heir, by Anna G. Rudolph, heir | 1984-04-10 |
| 4361698 | Process for the manufacture of dihalogenotriazinylamino-naphthol compounds | by Ursula Otten, heir, by Anna G. Rudolph nee Otten, heir, by Fritz Meininger | 1982-11-30 |