Inventor
Dieter Grenner
Inventor
Leverkusen, DE
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C07Cprimary
C07CAcyclic or carbocyclic compounds38%
B01DSeparation19%
C01BNon-metallic elements13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%
C10KPurifying or modifying the chemical composition of combustible gases containing carbon monoxide6%
F26BDrying solid materials or objects by removing liquid therefrom6%
PatentTitleYear
6,271,414'Process for the isomeric separation of isocyanates'20016,156,288'Process for purifying and concentrating spent sulfuric acids'20006,048,508'Process for obtaining carbon monoxide and hydrogen'20005,817,211'Process and device for continuous evaporation to dryness of viscous solutions and suspensions with a tendency to stick'19985,609,735'Process and a device for separating a solid residue from its solution in a stirred bed of material'19975,563,296'Continuous process for preparing aromatic amines'19965,395,995'Process for the preparation and purification of nitroaromatics'19954,430,156'Process for drying pumpable suspensions'19844,168,283'Process for drying copper containing catalyst waste'19794,070,405'Process for working up liquid copper-containing catalyst waste from isomerization reactions of dichlorobutene'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–2001Patents assigned to BAYER AG (10)· patent assignee history
1978–1984Based in Dormagen, DE· patent location history
1995–2001Based in Leverkusen, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAYER AG | 10 | 1978–2001 |
Locations
| Location | Patents | Span |
|---|---|---|
| Leverkusen, DE | 7 | 1995–2001 |
| Dormagen, DE | 3 | 1978–1984 |