Inventor
Gerhard Ludwig
Inventor
Haltern, DE
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B01Dprimary
B01DSeparation19%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry19%
C07CAcyclic or carbocyclic compounds13%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests13%
A61LMethods or apparatus for sterilising materials or objects in general6%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations6%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%
B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers6%
C07DHeterocyclic compounds6%
C11DDetergent compositions6%
PatentTitleYear
5,093,534'Process for the preparation of saturated alcohols from aldehydes'19925,011,661'Contact lens care set'19914,834,962'Process and apparatus for the catalytic reaction of gases'19894,770,857'Process and apparatus for the catalytic reaction of gases'19884,592,837'Apparatus for the filtering of solids-containing liquids'19864,588,090'Blister pack strip'19864,131,678'Urapidil/furosemide compounds, compositions and use'19783,987,099'Process for hydrogenation of dodecanedioic acid dinitrile'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1992Patents assigned to HUELS CHEMISCHE WERKE AG (4)· patent assignee history
1978Patents assigned to BYK GULDEN LOMBERG CHEM FAB (1)· patent assignee history
1978Based in Constance, DE· patent location history
1986Patents assigned to BERGWERKSVERBAND GMBH (1)· patent assignee history
1986Patents assigned to CITO PAC VERPACKUNGS GMBH (1)· patent assignee history
1986Based in Isernhagen, DE· patent location history
1986Based in Weiler, DE· patent location history
1988–1992Based in Haltern, DE· patent location history
1991Patents assigned to CIBA GEIGY CORP (1)· patent assignee history
1991Based in Stromberg, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HUELS CHEMISCHE WERKE AG | 4 | 1976–1992 |
| BERGWERKSVERBAND GMBH | 1 | 1986 |
| BYK GULDEN LOMBERG CHEM FAB | 1 | 1978 |
| CIBA GEIGY CORP | 1 | 1991 |
| CITO PAC VERPACKUNGS GMBH | 1 | 1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Haltern, DE | 3 | 1988–1992 |
| Stromberg, DE | 1 | 1991 |
| Isernhagen, DE | 1 | 1986 |
| Weiler, DE | 1 | 1986 |
| Constance, DE | 1 | 1978 |