Inventor
Roland Putzar
Inventor
Hofstetten, CH
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C09Bprimary
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments33%
D06PDyeing or printing textiles17%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
D06LDry-cleaning, washing or bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods11%
B01DSeparation6%
C07GCompounds of unknown constitution6%
C09KMaterials for miscellaneous applications, not provided for elsewhere6%
D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns, fabrics, feathers or fibrous goods made from such materials6%
PatentTitleYear
4,940,469'Low-foaming composition for finishing synthetic fibres: dye or optical brightener or ultra-violet absorber and alkylene-diamide:ethylene-distearamide'19904,752,298'Storage-stable formulations of water-insoluble or sparingly water-soluble dyes with electrolyte-sensitive thickeners: polyacrylic acid'19884,550,178'Dye mixture of 1,4-diamino anthraquinone-N-gamma-methoxy propyl-2,3-dicarboximide and 1,4-diamino anthraquinone-N-methoxyethoxy propyl-2,3-dicarboximide, processes for producing it, useful for dyeing and printing hydrophobic fiber materials.'19854,487,609'Powdered, stably dispersible, non-foaming dye formulations and process for their preparation'19844,465,492'Process for the preparation of concentrated aqueous formulations of synthetic anionic dispersants and the use thereof'19844,300,900'Process and dye preparations for pad-dyeing'19814,202,838'Sulphonated condensation products'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1990Patents assigned to CIBA GEIGY CORP (7)· patent assignee history
1980–1984Based in Therwil, CH· patent location history
1984–1990Based in Hofstetten, CH· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CIBA GEIGY CORP | 7 | 1980–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hofstetten, CH | 4 | 1984–1990 |
| Therwil, CH | 3 | 1980–1984 |