Inventor
Volkmar Weberndoerfer
Inventor
Mannheim, DE
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D21Hprimary
D21HPulp compositions36%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests18%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry9%
C07CAcyclic or carbocyclic compounds9%
C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds9%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments9%
D06PDyeing or printing textiles9%
PatentTitleYear
4,940,514'Making paper, board and cardboard of high dry strength'19904,818,341'Production of paper and paperboard of high dry strength'19894,784,724'Making paper which has a high dry strength'19884,770,743'Engine size for paper, based on fatty alkyl diketenes and cationic polyacrylamides'19884,560,745'Preparation of dyes which contain sulfonic acid groups and have a low electrolyte content'19854,252,531'Process for dyeing wool or nylon fibers'19814,242,187'Preparation of alkanes substituted by chlorine atoms and/or sulfochloride groups'1980Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1980–1990Patents assigned to BASF AG (7)· patent assignee history
1980–1990Based in Mannheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 7 | 1980–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Mannheim, DE | 7 | 1980–1990 |