Inventor
Hans-Walter Brandt
Inventor
Odenthal, DE
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation33%
C07CAcyclic or carbocyclic compounds27%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry7%
C07BGeneral methods of organic chemistry7%
C07DHeterocyclic compounds7%
G01NInvestigating or analysing materials by determining their chemical or physical properties7%
PatentTitleYear
4,874,473'Separation of diastereomers by extractive distillation'19894,732,685'Method of liquid-liquid extraction using material exchange columns'19884,349,416'Process and device for the separation of mixtures which form an azeotrope'19824,180,438'Process for the preparation of sump product'19794,165,644'Apparatus for introducing samples into high pressure gas chromatographs or liquid chromatographs'19794,141,799'Process for the purification of high-melting organic products'19794,090,922'Carrier-vapor distillation'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1989Patents assigned to BAYER AG (7)· patent assignee history
1978–1989Based in Odenthal, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 7 | 1978–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Odenthal, DE | 7 | 1978–1989 |