Inventor
Paul Rys
Inventor
Zurich, CH
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds37%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests21%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry11%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments11%
C25DProcesses for the electrolytic or electrophoretic production of coatings11%
C07DHeterocyclic compounds5%
D06PDyeing or printing textiles5%
PatentTitleYear
7,453,013'Catalytic method for the production of carbonyl compounds'20087,273,954'Catalytic method for the production of carbonyl compounds'20075,041,634'Process for the preparation of carboxylated aromatic hydroxy compounds'19914,950,306'Dyeing and printing of cellulosic fibre materials with vat dyes with mono- or di-hydroxyacetone as reducing agent'19904,929,771'Process for the preparation of alkyl-substituted phenols or naphthols'19904,861,920'Process for the preparation of 2,6-dihydroxynaphthalene'19894,773,973'Process for the production of polycrystalline silicon coatings by electrolytic deposition of silicon'19884,759,830'Process for the production of polycrystalline silicon coatings by electrolytic deposition of silicon'19884,042,635'Spiro compounds'19773,950,403'Spiro compounds'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1991Patents assigned to CIBA GEIGY CORP (5)· patent assignee history
1976–1991Based in Zurich, CH· patent location history
1988–1990Patents assigned to CIBA GEIGY AG (3)· patent assignee history
2007Patents assigned to CLARIANT SPECIALITY FINE CHEMI (1)· patent assignee history
2007–2008Based in Zürich, CH· patent location history
2008Patents assigned to WEYLCHEM FRANKFURT GMBH (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CIBA GEIGY CORP | 5 | 1976–1991 |
| CIBA GEIGY AG | 3 | 1988–1990 |
| CLARIANT SPECIALITY FINE CHEMI | 1 | 2007 |
| WEYLCHEM FRANKFURT GMBH | 1 | 2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Zurich, CH | 8 | 1976–1991 |
| Zürich, CH | 2 | 2007–2008 |