Inventor
Harald Gleinig
Inventor
Odenthal, DE
Overview
Patents· 10 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. pigments73%
C07CAcyclic or carbocyclic compounds9%
C09KMaterials for miscellaneous applications, not provided for elsewhere9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
PatentTitleYear
4,468,349'Process for the preparation of solutions of cationic azo dyestuffs'19844,432,899'Preparing concentrated azo dye solutions using nitrite salt as both coupling component and diazotizing agent'19844,402,701'Leather dyeing agents and their preparation: membrame separation of dye mother liquor'19834,400,321'Process for the preparation of solutions of cationic polyazo dyestuffs'19834,348,335'Process for the partial reduction of polynitrated diaryl compounds'19824,344,766'Process for the manufacture of preparations with a low dust content'19824,343,936'Process for the preparation of cationic dyestuffs'19824,342,867'Process for the preparation of cationic dyestuffs'19824,281,112'Process for the preparation of cationic dyestuffs'19814,075,198'Process for manufacture of benzidine pigments'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978Patents assigned to COLOUR CHEM LTD (1)· patent assignee history
1978Based in Neschen, DE· patent location history
1981–1984Patents assigned to BAYER AG (9)· patent assignee history
1981–1984Based in Odenthal, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 9 | 1981–1984 |
| COLOUR CHEM LTD | 1 | 1978 |
Locations
| Location | Patents | Span |
|---|---|---|
| Odenthal, DE | 9 | 1981–1984 |
| Neschen, DE | 1 | 1978 |