Inventor
Ernst Hoyer
Inventor
Frankfurt am Main, DE
Overview
Patents· 19 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. pigments72%
C07DHeterocyclic compounds8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
C07CAcyclic or carbocyclic compounds4%
D06PDyeing or printing textiles4%
F16KValves4%
PatentTitleYear
4,939,243'Water-soluble copper complex disazo compounds containg a chloro triazinylamino group and a group of the vinylsulfone series as fiber-reactive groups and their dyestuffs'19904,916,215'Water-soluble disazo compounds containing substituted triazinyl radical, pyrazole-type groups, and a plurality of fiber-reactive sulfone-containing groups, suitable as dyestuffs'19904,730,038'Water-soluble disazo compounds of 1-amino-8-naphthal-3,6- or 4,6-disulfonic acid as bivalent coupling component, containing fiber-reactive groups suitable as dyestuffs'19884,622,390'Water-soluble disazo compounds containing an amino naphthol-disulfonic acid moiety as a coupling component and fibre-reactive groups'19864,492,654'Water-soluble azo compounds, a process for their preparation and their use as dyes'19854,485,041'Water-soluble metal free or copper triazino-bis-[hydroxy-naphthylamino]-disazo dyestuffs containing fiber reactive groups, and a process for dyeing or printing cellulose fibers'19844,378,312'Water-soluble azo dyestuffs'19834,370,145'Copper formazan compounds, processes for their preparation and their use as dyestuffs'19834,336,190'Copper complex formazan compounds, process for their manufacture and their use as dyestuffs'19824,334,076'Process for the preparation of sulfuric acid semiester ethylsulfonyl compounds of aminophenols, aminobenzanilides or phenylpyrazolones by esterification with sulfuric acid and/or sulfur trioxide in a kneader'19824,323,497'Water-soluble disazo dyestuffs'19824,315,865'Process for the production of sulfuric acid semiester compounds by sulfation in a machine employing kneading action'19824,296,913'Ball valve'19814,293,306'Process for the dyeing and printing of hydrophobic synthetic organic fiber materials with water-insoluble azo dyestuffs'19814,242,258'Water-soluble dyestuffs, processes for their manufacture, their use as fiber-reactive dyestuffs for dyeing and printing fiber materials and the fiber materials dyed with these dyestuffs'19804,191,703'Process for the manufacture of sulfuric acid semi-ester compounds'19804,035,351'Water-soluble monoazo dyestuff containing a phenylene diazo component'19774,002,606'Water-soluble phenyl-azo-naphthyl compounds'19773,957,751'Water-soluble reactive dyestuffs of the monoazo series containing an active methylene coupling component'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1990Patents assigned to HOECHST AG (18)· patent assignee history
1976–1990Based in Frankfurt am Main, DE· patent location history
1981Patents assigned to HOYER ERNST H J (1)· patent assignee history
1981Based in Hamburg, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST AG | 18 | 1976–1990 |
| HOYER ERNST H Jself | 1 | 1981 |
Locations
| Location | Patents | Span |
|---|---|---|
| Frankfurt am Main, DE | 18 | 1976–1990 |
| Hamburg, DE | 1 | 1981 |