Inventor
Gerhard Pfeiffer
Inventor
Bad Soden, DE
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
D06Pprimary
D06PDyeing or printing textiles38%
B67CCleaning, filling with liquids or semiliquids, or emptying, of bottles, jars, cans, casks, barrels, or similar containers, not otherwise provided for13%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients13%
C08LCompositions of macromolecular compounds13%
C09BOrganic dyes or closely-related compounds for producing dyes, e.g. pigments13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
PatentTitleYear
4,827,988'Foaming apparatus for driving out residual air from containers filled with a foamable liquid'19894,731,093'Process for fixing pigments on fiber materials and sheetlike structures'19884,080,160'Fixing pigment to textile with mono-sulphated oleic acid amide'19784,077,764'Process for the continuous dyeing of textile polyamide fiber material with metal complex dyes'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1988Patents assigned to HOECHST AG (2)· patent assignee history
1978Patents assigned to CASSELLA FARBWERKE MAINKUR AG (1)· patent assignee history
1978–1988Based in Bad Soden, DE· patent location history
1989Patents assigned to SEITZ ENZINGER NOLL MASCH (1)· patent assignee history
1989Based in Norheim, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HOECHST AG | 2 | 1978–1988 |
| CASSELLA FARBWERKE MAINKUR AG | 1 | 1978 |
| SEITZ ENZINGER NOLL MASCH | 1 | 1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Bad Soden, DE | 3 | 1978–1988 |
| Norheim, DE | 1 | 1989 |