August Schweizer

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Muttenz, CH

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing colored paper using granulated dye compositions
- Patent number 4,198,268
- Issue date Apr 15, 1980
- Sandoz Ltd.
- Alfred Frei
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Concentrated aqueous dye compositions containing a low molecular we...
- Patent number 4,149,851
- Issue date Apr 17, 1979
- Fidelity Union Trust Company, Executive Trustee under Sandoz Trust
- Alfred Frei
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Compositions of metal complexes of disazo acid dyes stabilized with...
- Patent number 4,083,681
- Issue date Apr 11, 1978
- Sandoz Ltd.
- Alfred Frei
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information Patent Grant
Concentrated aqueous dye compositions containing a low molecular we...
- Patent number 4,023,924
- Issue date May 17, 1977
- Sandoz Ltd.
- Alfred Frei
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Organic compounds
- Patent number 3,936,496
- Issue date Feb 3, 1976
- Sandoz Ltd., (Sandoz AG)
- Zdenek Allan
- C07 - ORGANIC CHEMISTRY