Kelkenberg; Heike
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kelkenberg; Heike.The latest application filed is for "super-absorbents and a process for their preparation".
- Kelkenberg; Heike - Gladbeck DE
- Kelkenberg; Heike - Bottrop DE
| Patent | Date |
|---|---|
| Super-absorbents and a process for their preparation Grant 5,496,933 - Kelkenberg March 5, 1 | 1996-03-05 |
| Aqueous fabric softener for the treatment of textile Grant 5,447,643 - Kelkenberg , et al. September 5, 1 | 1995-09-05 |
| Use of n-polyhydroxyalkyl fatty acid amides as thickening agents for liquid aqueous surfactant systems Grant 5,009,814 - Kelkenberg , et al. April 23, 1 | 1991-04-23 |
| Cyclic imides, their preparation and use Grant 4,356,307 - Kelkenberg , et al. October 26, 1 | 1982-10-26 |
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