Walter Helmling

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West Warwick, RI, US

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Patents Grantslast 30 patents

Information Patent Grant
Fiber reactive formazan dyes containing a vinyl sulfonyl reactive g...
- Patent number 5,563,248
- Issue date Oct 8, 1996
- Hoechst Celanese Corporation
- Walter Helmling
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Mixture of water soluble reactive dyes and their use
- Patent number 5,484,459
- Issue date Jan 16, 1996
- Hoechst Celanese Corporation
- Walter Helmling
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Fiber reactive anthraquinone dyes
- Patent number 5,393,884
- Issue date Feb 28, 1995
- Hoechst Celanese Corporation
- Ronald P. Pedemonte
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
High temperature process for preparing fiber reactive dyes
- Patent number 5,350,838
- Issue date Sep 27, 1994
- Hoechst Celanese Corporation
- Mark A. Helle
- C07 - ORGANIC CHEMISTRY